Eri Nakamura

Evil-doer
Full Name	Eri Nakamura
Alias	Eririn Traitor (branded)
Origin	Arifureta Shokugyō de Sekai Saikyō
Occupation	Hero (formerly) Commander over her undead army Garland's spy
Powers / Skills	Enhanced strength Intellect Tactics expertise Dark magic Resurrection Brainwashing
Hobby	Reading books. Lusting for Kouki Amanogawa. Sadistically tormenting her classmates. Serving Ehit.
Goals	Kill all of her classmates (including Hajime Nagumo, Kaori Shirasaki, Shizuku Yaegashi, Suzu Taniguchi and Ryutarou Sakagami). Get Kouki Amanogawa to become her boyfriend no matter what. Destroy the Heiligh Kingdom for Garland Capture Remia and Myu to use them as hostages against Hajime Nagumo (all failed).
Crimes	Blackmail Mass murder Torture Genocide Destruction Regicide Sexual harassment Psychological abuse Kidnapping
Type of Villain	Traitorous Sorceress

“	Fufu, I’m so glad we all came to this world. Getting rid of all of you would have been difficult back in Japan. Which is why, of course, I can’t let you guys win this war and go back home. Because Kouki-kun’s going to spend the rest of his days here, with me. Forever.	„
	~ Eri's true nature.

“	Wait, wait a bit, Nagumo. Come on, look at the surrounding people? There’s not much difference between them and the living? Although it can’t be helped that she’s dead, at the very least I could make her like them? Furthermore, I can create a Kaori that you like? For that you’ll absolutely need me...	„
	~ Eri's cowardice for Hajime.

“	Kill him!	„
	~ Eri send her zombie slaves to Hajime.

Eri Nakamura is one of the secondary antagonist characters from the Japanese light novel series "Arifureta Shokugyō de Sekai Saikyō". She is one of the main antagonists of the Demon Invasion/War on the Heiligh Kingdom Arc. She is one of the secondary antagonists of the final Arc. She is one of Hajime's classmates but now one of his enemies. Due to her hatred of her entire classmates for gotten in her way for make Kouki Amanogawa her boyfriend, She is also the archenemy of her "best friend" Suzu Taniguchi as well the mortal enemy of both Shizuku Yaegashi and Kaori Shirasaki (who are Kouki's childhood friends, but Hajime's lovers).

She was originally one of the summoned heroes but later betrayed her classmates to the demons. Used her original darkness magic "Soul Bind" to manipulate countless numbers of dead puppet soldiers. After she obtain the power of apostle, she became more powerful than before and able to manipulate Kouki Amanogawa using soul bind even without killing him. She died using self destruct power which is her "last loyalty" after knowing that Kouki no longer being manipulated by her. After she died, she has a face to face communication with best friend Suzu Taniguchi, telling her she would have been better if she met Suzu first instead of Kouki during her childhood time.

Before the war begins, Eri became a sleeper agent of Garland. During the war in the Heiligh Kingdom, Eri and Daisuke Hiyama has betrayed the Heiligh Kingdom and classmates as well are branded as traitors when they murdered the knights and their classmates. However, failed when Hajime arrived, she has betrayed Hiyama. After Hiyama's death, she retreated with Freid Bagwa to Garland. During the final battle, she fought and got defeated by Suzu until she committed suicide by self-destructing herself via an explosion.

After the manipulating Kouki to her side, she behaves just like her disowned mother by being clingy towards Kouki.

Appearance

Eri Nakamura before her betrayal.

Eri has short black hair that is kept in a tiny bob. She has brown eyes and is usually seen wearing glasses. After She discarded and broke her glasses, she shown her true nature when he has a sinister smirk at her face.

After obtaining the power of an apostle, she grows wings and black hair turned into grey.

Personality

In the beginning, Eri is portrayed as a calm and quiet girl that loves books. Later on, however, it is shown that she is very cunning and willing to take advantage of classmates for her gain. She has a very deep obsession on Kouki to the point that she is willing to kill him to "soul bind" him and make him her puppet.

In her tragedy of her past, she was blamed and abused by her mother after her father died by a car accident and made her childhood life extremely miserable. After her mother's remarriage, she was abused by her stepfather physically until he was arrested by the police. After her stepfather's sentence to prison, her mother abused her even further that nearly killed her until the police arrested her mother as well. From her suffering of pain and agony she received from both her mother and stepfather, she holds a hatred toward her mother for her remarriage and broken her bond between herself and her mother. These resulted has made Eri as a deranged evil girl.

In her fake personality, She shown kind and compassionate to make friends with her classmates especially her ex-best friend, Suzu Taniguchi. But in true nature, she is evil and has no concerns about her classmates when revealed she was only pretending to become friends with them as her classmates are nothing but pawns to her due to her hatred towards them but hates Kouki's childhood friends, Kaori Shirasaki and Shizuku Yaegashi worse than her hatred towards classmates (despite they are Hajime's lovers, not Kouki's). She attempted to kill her classmates to make them as her zombie slaves which failed due to Hajime's arrival but only managed to kill one of them, Reichi Kondou (one of Daisuke Hiyama's gang member who he betrayed). Her pretending to make friends with her classmates has really disgusted her for a long time. She has no regards in her actions when betraying them after revealed her true nature as well being Garland's spy. In her retreat to Garland thanks to Hajime's interference, she is none than less glad she is no longer being in a "play house" with her classmates for a long time in her assassination plot on her classmates. She doesn't regard of killing the Heiligh Kingdom's king and nobles. Eri lacked goodness and compassion it was due to her suffering by both her mother and stepfather in physically and mentally as well she lacks parental love.

Due to her suffering from anguish and agony she endured after lost her birth father from a car accident and later her mother and stepfather were abusing her both physically and mentally which she almost died at the hands of her mother, Eri revealed to her classmates of her true nature as a ruthless, uncaring, cruel, arrogant, sadistic, insecure and twisted lunatic. Due to her tragedy of her suffering by both her mother and stepfather, She is an evil girl who holds a selfish lust for Kouki of wanted to make her boyfriend and wanted to kill all the other girls which includes Kouki's childhood friends who are Hajime's lovers, Kaori and Shizuku and the rest of her classmates as she has killed Reichi Kondou (Daisuke Hiyama's former gang member who he betrayed) but failed due to Hajime's arrival.

Due to her immense cruelty and sadism, Eri is an extremely abusing torturer who enjoys enslaving her zombie slaves and torturing the souls of the dead to force them to do her bidding. She is a very violent sadistic psychotic who doesn't flinch when she enjoys of tormenting her classmates to make them suffers in despair and agony much of her amusements and joys.

Due to Kaori and Shizuku being Kouki's childhood friends (despite of them being Hajime's lovers), Eri holds a murderously jealously at them and eternally hates them more than the her hatred towards the rest of her classmates as she wants to kill them with the rest of their classmates so that she could have Kouki for herself and always considered both Kaori and Shizuku as her mortal enemies. When seeing Kaori was revived by Hajime, Eri's hatred towards her and Shizuku has grown even worse. She doesn't considered Suzu as her best friend but a nuisance who stood in her way to make Kouki her boyfriend. Although she's being terrified of Hajime's mass murders and monstrous strength, Eri also hates him for kept on ruining her plans despite how she personally felt for him months ago, but in her true nature, she was willing kill him as well.

“	Why'd this monster have to show up and ruined all my plans?!	„
	~ Eri when Hajime arrived and foiled her plans.

Like Daisuke Hiyama, Eri is also a coward despite of her outwardly confidence as she is terrified to die by the hands of her now mutated and murderous classmate, Hajime Nagumo of his demonic strength, murdering intents and ruthlessness after he murdered Cattleya. She viewed Hajime as a monster for his murders and genocides on those who gotten his way even when he ruined all of Eri's plans including prevent her from turning Kaori into Hiyama's zombie sex slave. While Kaori's temporarily death and Hajime marched toward Eri, she begged him to spare her life to bring Kaori back as his slave which only angered the demonic mass murderer despite she had betrayed Hiyama. When failed to kill him after witnessed his wrath of destroying her zombie slaves and murdering Daisuke Hiyama, she is shown to be even more terrified when Hajime prepare to execute Eri for her failure attempts to make Kaori as an undead sex slave for Hiyama when she was unable to try to stab Hajime with daggers until she got away to Garland with the help of Freid Bagwa.

“	Ahaha, give it up! She's already dead. I never thought you guys would show up here... Well, I should have expected it since Kaori was here and all... Looks like Hiyama's outlived his usefulness, so how about I give Kaori to you instead? If you promise not to fight me, I'll use my magic bring her back. She won't really come back to life, but at least she'll still look pretty. It's better than letting her rot, I imagine. What do you say?	„
	~ Eri's betrayal to Hiyama and attempted to convince Hajime

Due to her intelligence, Eri is highly manipulative and traitorous even more than Daisuke Hiyama. She manipulated her classmates into making friends with her including Suzu. She has a knowledge of Daisuke Hiyama's previously betrayal of his once failed attempt to kill Hajime only to return into an indestructible and mass murdering monster. She use this knowledge to blackmail Hiyama to cooperate with her to ensure they will get those who they've obsessed until failed due to Hajime's arrival. While In her selfishnessly betrayal towards her classmates, Eri has no further use for her weak pawns such as Hiyama as she also betrayed him after he outlived of his uses and admittedly revealed that she never saw Hiyama as a comrade or a collaborator but rather just a pawn to her when she attempted to convince Hajime to make Kaori as his slave after witnessing how weak Hiyama was as he was easily defeated by Hajime. While Hiyama facing his death, Eri has no intentions of going back to help Hiyama and abandoned him due to Hiyama being pathetically weak to her future plans. Following her defection, Eri has little to no remorse for her actions and was fine of being branded as a traitor.

After her transformation by Ehit but no longer as a human anymore, Eri is fiercely loyal to the false god as she will do anything for Ehit to ensure letting her get Kouki for herself. And without any trace of humanity left inside of her heart, she is far too evil than before as she has no intentions to rejoice her classmates including her ex-best friend, Suzu even if they would forgive her due to her wanted to slaughter all of her classmates to have Kouki for herself. Even her defeat by Suzu, Eri still will never find resolves as she rather die instead of betraying Ehit despite Suzu ensured her that their classmates would forgive her and her treacherous actions as she attempted to kill Suzu by committing suicide for a self-destruct spell but also killed herself in a process.

Despite of her evilness, shamelessness and disregards, Eri believed if she would've meet Suzu first before Kouki, things would turned differently and would have an unbreakable friendship but it was too late for that since she met Kouki before Suzu.

Biography

Past

In the beginning, Eri once had a lifetime with her parents. Unfortunately, she has a tragic life. After her father died by a car accident, her mother abused her. After her mother's remarriage, her stepfather has abused her which led her neighbors call the police to arrest him. After her stepfather sent to prison, her mother abused her in a worse case when she nearly died which once again allowing the neighbors call the police to arrest her mother as well. When Eri attempted to commit suicide, she met Kouki Amanogawa and willing to make him as her boyfriend but until she became a psychopath and act to be friendly of her desire to kill Kouki's childhood friends, Kaori Shirasaki and Shizuku Yaegashi and the rest of her classmates including Hajime Nagumo (despite he was harmless) whom stands in her way to make Kouki as her boyfriend but she was powerless to make it happen knowing she would discriminate and would get arrested by the police as her mother and stepfather did. She continue her evil assassination plot on her classmates further If they are not in their world which Ehit summoned the so-called "Heroes".

Post-Summoned

In Tortus, It makes Eri's plot of her assassination on her classmates easier than she imagined and continually her act of being shy but nice person. Out of all of her classmates who were manipulated of Hiyama's lie of Hajime's presumably dead, Eri decided to use the knowledge to her advantage. While returned to the Orcus Labyrinth (which was already been cleared by Hajime), she terrified of Hajime when not only did he survived but has become a most powerful murderer. After Kaori left the "heroes" to join Hajime, Eri used Cattleya's body to spill everything to Garland's troop led by Freid Bagwa of Orcus Labyrinth cleared and Cattleya was killed by Hajime Nagumo. She had offered herself to betray her classmates to join them as Garland's spy when the war in Heiligh Kingdom will arrive.

Betrayal and Defection

After Hiyama gotten completely breakdown of his plan being backfired by Hajime, Eri confronted Hiyama of forming an alliance which he cannot refuse due to her manipulative of she would backfired his early failed attempt on killing Hajime (which caused him to become a monster) and would exposed this knowledge to their classmates. She confronted by a strange nun who's master holds amuse for her to continue her plans within few months as the so called "god" provide his apostles army to support her plans.

During the war in Heiligh Kingdom, Eri and Hiyama has betrayed the kingdom and classmates. She killed Reichi Kondou (one of Hiyama's gang member). After Noint's death and the brainwash was undone, Eri send one of her zombie slave and killed the king and nobles of the kingdom. While Kouki submitted himself, Eri place a poison from her kiss with Kouki. When she was about to both make Kaori to Hiyama's sex slave and kill Shizuku, Hajime shown and ruined their plans as well Hajime consumed by rage as he unleashed his true power. Eri then deserted Hiyama out of his use after she is willing to offer Hajime to make Kaori as his slave. When Hajime marched to Eri, she beg her murderous classmate to spare her to make Kaori as Hajime's slave but only anger him for worse. She send her slaves to kill Hajime only for the latter to destroy them easily. Eri then, pulled her daggers in her attempt to kill Hajime only being easily overpowered by him. While fearing of Hajime was about to kill her, Hiyama (Eri's former ally who she betrayed) interfered by firing a fireball at Hajime. Following her slaves' and Hiyama's death, Hajime has continued to willing to kill Eri until Freid and troops approached to used the civilians and classmates only for Hajime demolished 100,000 troops. Following no other options, Eri and Freid retreated to Garland.

Transformation

While meeting Ehit, Eri got an undergone transformation to become a hybrid Apostle. After captured Yue and gave her body to Ehit, she was granted to capture Kouki to give her as a "prize" for her loyalty and work.

Death

In the final war, Eri fought her ex-best friend, Suzu. After Eri was defeated by Suzu, Eri used a self-destruction to explode herself to try to kill Suzu but died in a process and her corpse was disintegrated without a trace.

Weapons

• Long Staff: As a necromancer, Eri's main weapon is a long staff.
• Daggers: Eri also wielded daggers in her attempted to kill Hajime but lost them after Hajime easily overpowering her.
• Twin Great swords: After her transformation by Ehit, Eri wielded two great swords.

Powers and Abilities

• Immense Strength: Due to her undergone transformation by Ehit of become hybrid apostle, Eri possessed tremendous strength powerful than strength blessed humans.
• Immense Speed: Due to her transformation, Eri hold tremendous speed to surpass speed based humans meaning she has surpass Shizuku Yaegashi's speed but paled to Hajime and Kaori (while she resided in Noint's body).
• Immense Durability: While as a human, Eri didn't acquired durability to withstand her enemies' attacks such as Hajime when brutally overpowering her while in his enraged state from Kaori's temporarily death. Due to her transformation, Eri now have enhanced durability to withstand her enemies' attacks surpassing Ryutarou Sakagami's durability but paled to Hajime and Kaori (while resided in Noint's body).
• Dark Magic: As a necromancer, Eri possessed dark magic of reviving the dead as zombies and she controls them as puppets by torturing the souls of the dead to force them to do her bidding. She can negated magic such as Yue and place enemies unconscious as she did to Yue. In her defeat by Suzu, Eri also have an explosive magic that explode herself to kill anyone who come closer to her but died in a process when she attempted to kill Suzu.
• Tactics expertise Due to her intelligent, Eri easily deceive her classmates into becoming friends with her especially her so-called "best friend", Suzu. She also has the knowledge of Hiyama's failed attempted murder on Hajime only to become a demonic monster as she would use this knowledge into an alliance or would exposed it if Hiyama refuses. She also acknowledge of using one of Hajime's lovers, Remia and his adoptive daughter, Myu to be good hostages against Hajime. In her attempted to convince Hajime to make Kaori as his slave for her own safety, she revealed Hiyama was just a pawn and betrayed him when he outlived his usefulness.
• Swordsmanship: Eri learned from Meld's training after Hajime has left the so-called "heroes" while Kaori travels with him. She has a slightest pale method of using daggers when she attempted to kill Hajime only to be overpowered by him. After her transformation, Eri has tremendous talents of swordsmanship. Despite of her swords' weight, She can deflect attacks with her naked eyes.

Weaknesses

• Abuse/Torments: Eri's two main weaknesses, next to superiority, is her being abused physically and mentally. It is shown after her father died, her mother has abused her both physically and mentally. Her newly stepfather has abused her physically. After her stepfather is arrested by the police, Eri's mother once again abused her even further that nearly killed Eri. For these torments from her mother and stepfather, Eri has become an emotionally insure psychotic. Hajime also tormented Eri worse than the time both her both of mother and stepfather abused her due to her failed attempted to turn Kaori into Hiyama's zombie slave.
• Superiority: Eri's two main weaknesses are superiority of both intelligence and strength. Despite of her immense strength of being a hybrid, Her strength is inferior to an actual Apostle or Kaori Shirasaki (while in Noint's body) as well her strength is far weaker than the demonic empowered Hajime Nagumo. Despite of her intelligence, Eri's plan of using her classmates and the Heiligh Kingdom's people as hostages taking won't work on Hajime when he destroyed 100,000 demon troops with his satellite. Her tactics of trying to capture Myu and Remia to use them as hostages were too predictable due to Hajime knowing and ruining her plans as he killed Alva.
• Cowardice: Like Daisuke Hiyama, Eri's secondary weakness is cowardice when she is scared of her monstrous classmate, Hajime Nagumo for his strength and his mass murdering intents. When Hajime arrived and ruined all of her plans, she attempted to save her skin of convincing the rage consumed Hajime by simple betraying Hiyama as it demonstrate she begged him to spare her to revive Kaori as his slave which only increasing Hajime's rage further despite she betrayed Hiyama. She fears Hajime worse when he destroyed all of her undead slaves and later murdered Hiyama.
• Explosive Magic: When using her explosive magic by committing suicide, Eri dies in a process by exploding herself in her attempt to kill her ex-best friend, Suzu Taniguchi.

Gallery

Eri's true nature when she sadistically grinned.

Relationships

Family

Father

While her father was alive, she seemed to have a bond between them. However, he died by a car accident after he saved Eri's life.

Mother

It is unknown if they have a good relationship while her father was alive. However after her father's death, Eri's mother holds a hatred towards her daughter as she blamed Eri for her father's death by abusing her physically and mentally. After her stepfather gotten arrested by the police, Eri's mother once again blamed her daughter and abused her even further as she nearly killed Eri only for Eri's neighbor calling the police again to arrest her mother as well. Her abusing method turned Eri into an emotionally insecured lunatic causing Eri to hate her mother and broken her bonds with her mother leaving Eri to live her life as an orphan.

Stepfather

Despite her mother's remarried another man into her family, Eri doesn't have a good relationship with her newly stepfather as he abused her physically which caused Eri's neighbors to call the police to arrest her stepfather.

Allies

Freid Bagwa

Following her defection, Eri and Freid are comrades. Despite of their allegiances, Freid doesn't hold a complete trust on Eri due to his hatred towards humans but willing to cooperate when his "god" finds her amusing.

Garland

Eri revealed to her classmates that she is a spy to Garland. She chose to join them at their caused to destroy the Heiligh Kingdom and Eri's plot to kill all of her classmates excluding Kouki until their plans were foiled by Hajime as she retreated with them. Following their defeat, Eri has suggest Garland to capture both Remia and Myu to use them as hostages against Hajime. However, her suggests has let Garland's troops to die at Hajime's hands even when he killed Alva.

Noint

Noint was intend to kill Eri. But when her master finds her amusing of her assassination plot on her classmates, Noint decided to assist Eri's plans.

Ehit

Eri has a complete loyalty to Ehit. Despite not meet face to face, Ehit amused of Eri and considering as an interest "piece". He decided to assist her assassination plan to kill her classmates to get Kouki for herself. After meeting him, Ehit gives Eri an undergone transformation to become a hybrid Apostle to become his servant. He deemed Eri worthy after she brought Yue allowing Ehit to temporarily possess her body. Ehit then manipulated Eri of granted her wish to make Kouki as her "prize" for her service. Eri's loyalty to Ehit is undying as she refused to return to her classmates despite of Suzu's assurance of they would forgive her and her actions when she committed suicide by exploding herself in her attempt to kill Suzu but died in a process.

Enemies

Suzu Taniguchi

In her fake personality as a "shy girl", Eri become best friends with Suzu since elementary school. However, in her true nature, Eri never considered Suzu as her best friend and willing to kill her and the rest of her classmates due to them being in her way to make Kouki Amanogawa her boyfriend as Eri became Suzu's archenemy. From her betrayal, Suzu suffers a sorrow in her heart when she realize her friendship with Eri was just a lie all this time. Despite of Eri's betrayal and their friendship was a lie, Suzu doesn't hold a grudge on Eri for her betrayal as she determine of wanted to become Eri's friend. To do so, she want to get stronger with the assistance of Hajime. In her final battle and gotten defeated by Suzu, Suzu tells Eri to find redemption and ensured her of their classmates would forgive her and her actions. But instead, Eri rather die as she chose to commit suicide by exploding herself in attempt to kill Suzu but died in a process.

Hajime Nagumo

In her fake personality, it is unknown how she feel for Hajime. But in her true nature, Eri was willing to kill him with the rest of her classmates. However, seeing he is alive but obtained monstrous strength, Eri is terrified of Hajime of his strength and mass murdering intents after he killed Cattleya. Due to his murdering, Eri viewed Hajime as a monster. Following his arrival and Kaori's temporarily death, Eri begged Hajime to spare her life to make Kaori as his zombie slave only to anger him despite her betrayal towards Hiyama. As Hajime has spirit magic, he doesn't need any favors from Eri as he is willing to kill her for her betrayal. Eri sent out her slaves to kill Hajme only for him to destroy them easily. Eri then pulled out her daggers in her attempted to kill Hajime only to be easily overpowered by him. Hajime tormented her that he doesn't care what is her motivations or who caused her to become a traitor as he was prepare to kill her until Hiyama fired a fireball at Hajime (but did no damage) despite Eri's betrayal towards Hiyama. After killing Hiyama, Hajime intends to proceed to kill Eri until Freid interfered. Following her defection, Eri insisted to capture Remia and her daughter, Myu to use them as hostage against Hajime but foiled by Hajime as Eri's plans were too predictable. After Eri captured Yue, Hajime swore he will kill her due to Eri has no trace of humanity left in her but didn't need to when she committed suicide to her attempted to kll Suzu.

Shizuku Yaegashi

In her fake personality, Eri and Shizuku were close friends in high school. However, in her true nature, Eri holds a murderously hatred towards Shizuku for being Kouki's childhood friend (although she is Hajime's lover) as she wanted to kill her and the rest of their classmates to claim Kouki for herself. She considered Shizuku as one of her mortal enemies (along with Kaori). Eri was about to kill Shizuku and make her one of her zombie slaves until failed due to Hajime's arrival.

Kaori Shirasaki

In her fake personality, Eri and Kaori were close friends in high school and chose to support her claims that Hajime is alive which is true. However, in her true nature, Eri hold a murderously hatred towards Kaori and considered her as one of her two mortal enemies (along with Shizuku) due to her being Kouki's childhood friend (although she is Hajime's lover) as she wanted to kill her and the rest of her classmates to claim Kouki for herself. When she was about to turn Kaori into Hiyama's zombie sex slave, Hajime arrived and dispelled Eri's magic. In her chance to survive from Hajime, Eri begs Hajime to spare her life so she could make Kaori as his zombie slave instead but only angers him despite her betrayal towards Hiyama. After Kaori was revived by Hajime, Eri's hatred towards Kaori grew even worse. Despite of knowing of her true nature and what she did, Kaori doesn't hold a grudge on Eri.

Kouki Amanogawa

Kouki once save Eri's life from committing suicide after she was abused by both her mother and stepfather who are later imprisoned. Eri has attraction toward Kouki as she attempt to have him for herself even to kill her entire classmates including Kouki's childhood friends, Kaori Shirasaki and Shizuku Yaegashi (who are Hajime's lovers) to claim him for herself. After he foolishly submit, Eri place a poison into Kouki through their kiss to make him as her slave. Kouki shown displeasure when Eri attempted to make Kaori as an undead slave for Hiyama until it was foiled when Hajime arrived. In his hopeless fight against Hajime, Kouki foolishly believed Hajime has "brainwashed" Eri which is impossible as Hajime doesn't have any interactions with Eri.

Ryutarou Sakagami

In her fake personality, Eri was Ryutarou's close friend. However in her true nature, Eri revealed that Ryutarou and the rest of their classmates were nothing but pawns to her. Ryutarou holds hostility when she attempted to turn Kaori in Hiyama's undead sex slave until he was relief when Hajime ruined their plans.

Myu and Remia

Eri viewed Remia and Myu as suitable hostages against Hajime as she give her suggestions to Garland to capture them only for the Garland's troops get themselves killed by Hajime.

Liliana S. B. Heiligh

In her fake personality, Eri and Liliana were close friends. However, in her true nature, she viewed the princess as a pawn. After killing her father, Liliana holds a hatred toward Eri.

Her classmates

In her fake personality, Eri make friends with her classmates. However, in her true nature, she personally hates her classmates and considered them as pawns. She attempted to kill her classmates and make them her zombie slaves to ensure she claims Kouki for herself. Her betrayal deeply impacted her classmates after she killed Reichi Kondou. Her attempted murder for her classmates failed due to one of her classmates Hajime Nagumo's arrival. After became a hybrid Apostle, Eri is now happily pleasured that she has enough power to kill her classmates. Even in her defeat by Suzu, Eri would rather die instead of rejoining her classmates by committed suicide in her attempt to kill Suzu despite of Suzu's assurance of their classmates would forgive her and her actions.

Aiko Hatayama

In her fake personality, Eri and Aiko were close relationship of teacher and student. But in her true nature, she doesn't care about her teacher as she is willing to kill her and the rest of her classmates due to them being her way to make Kouki as her boyfriend.

Daisuke Hiyama

Eri's former classmate and fellow traitor who she betrayed. Eri blackmailed Hiyama to cooperate with her or she would exposed his failed attempted assassination plot on Hajime (which turned him into a monster). While cooperating, Eri considered Hiyama was a pawn. For her own safety after failed to turn Kaori in Hiyama's zombie sex slave when Hajime arrived, Eri betrayed Hiyama and offer Hajime to make Kaori as his zombie slave instead when she witnessed of Hiyama being pathetically weak. While Hajime thrown Hiyama to his death, Eri isn't bothered of helping Hiyama and abandoned him to his death due to him no longer having any strategic uses to her.

Hajime's lovers

Eri made enemies with Yue, Shea Haulia and Tio Klarus. When she attempted to escape, they've surrounded her as she is no match for them. After Eri turned into a hybrid, she captured one of them (Yue) for Ehit's temporarily possession.

Victims

• Over 500 Templar Knights
• Reichi Kondou (alive)
• Eliheid S. B. Heiligh
• Nia
• Heiligh Kingdom's nobles

Trivia

• Eri was one of the four (formerly five) classmates who died (along with Yukitoshi Shimizu, Kaori Shirasaki (formerly due to her revival), Reichi Kondou and Daisuke Hiyama). She is the only one who committed suicide by exploded herself in her attempted to kill her ex-best friend, Suzu Taniguchi.
• Eri's death moments holds similarity to Deidara when they exploded themselves on their attempts to kill their enemies.
• Eri was the fourth (formerly fifth) and final classmate to die.
• Eri was one of the few who had tragic lives (other beings are Hajime Nagumo and Yukitoshi Shimizu).
• Eri was one of the two who killed their own classmates beside Hajime (while Daisuke Hiyama is only temporarily).
• Eri was one of the three classmates who are no longer fully humans anymore (the other beings are Hajime Nagumo and Kaori Shirasaki).
• Eri was one of the three classmates who are traitors (along with Yukitoshi Shimizu and Daisuke Hiyama) as well being the only female traitor. However, when she has betrayed Hiyama of her attempted to convince Hajime to make Shirasaki as his slave for her safety, Eri is considered to be the biggest traitor in the whole series.
• In her true nature from her suffering in despair and agony by her mother and stepfather, Eri revealed to be the most evil classmate meaning she's eviler than Shimizu and Hiyama.