Lila Rossi/Synopsis

The synopsis of the evil liar Lila Rossi from Miraculous Ladybug

Season 1
In "Volpina", while heading to class, Marinette begins to hear numerous stories about a girl named Lila, who is said to know Prince Ali, even having ridden in his private jet, have a song written about her by Jagged Stone, and know all the famous Hollywood directors. Confused, Marinette asks Alya about Lila, who explains she is a new student from Italy, pointing to her upstairs with Adrien (whom she is very clearly infatuated with), before playing a Ladyblog interview in which Lila claims she is close friends with Ladybug. Seeing Lila with Adrien, Marinette begins to panic about how he might fall in love with her and follows them both into the library. In the library, Lila prepares to study with Adrien and notices the Miraculous Spellbook which he had taken from his father. Seeing the past heroes documented within it, she claims to love superheroes, only to become quickly annoyed upon noticing Adrien's crush on Ladybug. Again claiming to be friends with Ladybug, she suggests that they meet at the park after school where she can tell Adrien more about their friendship.

As Adrien hastily attempts to leave for his fencing class, Lila startles him, making him spill his books from his bag. Whilst confirming their meeting at the park, she slips the Spellbook away from him. After Adrien leaves, she flips the book open to a page about a Fox Miraculous holder, and, declaring it "interesting", leaves. Later, Lila goes to a jewelry shop, where she buys a necklace that resembles the Fox Miraculous, all while being watched by Marinette and Tikki, the latter wanting to find out if the book is the same one Master Fu lost. While comparing her necklace to the one in the book, Lila spots Adrien and panics, immediately hiding the book by tossing it in a garbage can. As Marinette and Tikki recover the book, Lila lies to Adrien by claiming that she is the descendant of the vixen superheroin Volpina, who is far more powerful and celebrated than Ladybug. Enraged, Marinette transforms into Ladybug and calls Lila out for her lies, making her run off, crying. Saddened that her chances with Adrien have been ruined, Lila declares her hatred of Ladybug to a poster featuring her and begins crying again.

Sensing Lila's sadness, Hawk Moth sends an Akuma after her, which possesses her necklace. Hawk Moth offers to grant Lila the power to bring her lies to life, also instructing her to pretend to be a real superhero so that she can gain Ladybug and Cat Noir's trust in order to betray them and steal their Miraculous. Lila eagerly accepts the offer and transforms into Volpina, using her powers to make the Ladybug poster of one of her carrying Adrien away, before leaving. Later, she uses her powers again to create an illusion of a giant meteor, which, using another illusion of herself, she stops and throws away with ease, though the meteor illusion falls apart upon hitting a pigeon. Volpina declares herself as the only superhero Paris needs while Ladybug and Cat Noir discuss her arrival, only for her to suddenly come to them asking for help. The three-run to another rooftop to see Hawk Moth standing out in the open, Volpina claiming that they need to pool their talents in order to take him down. Ladybug becomes skeptical about the meteor and Hawk Moth both appearing in one day and questions Volpina about her Miraculous and abilities, which is cut short when Hawk Moth makes his escape.

The three chase him to the Hôtel de Ville and Volpina orders Ladybug to go right and Cat Noir to go left while she takes Hawk Moth from behind, only for Ladybug to rebut her orders with her own, which doesn't bother Volpina. Volpina then flies behind a chimney, where she is destroyed by the real Volpina, who comments that Ladybug and Cat Noir are falling into her trap. Ladybug soon loses Hawk Moth and is cornered by an assembly of fake weapons conjured by Volpina, who reveals her true intentions and, indirectly, her identity. Volpina proclaims that everyone now thinks she is a superhero and everyone will think Ladybug is the liar, before being instructed by Hawk Moth to get Ladybug's Miraculous. Volpina threatens Ladybug and seemingly destroys a building in order to force her to give up her Miraculous, only for a pigeon to destroy the illusion and make Ladybug realize what her powers are. Ladybug destroys the weapon illusions and the fake Volpina and calls Cat Noir to tell him the truth, theorizing that Volpina could be headed to Adrien's house.

At his house, Cat Noir detransforms back into Adrien, planning to talk Volpina down. Immediately afterwards, Volpina, again just an illusion, quickly arrives and proclaims how she is a "real" superhero to him. Ladybug then bursts in and confronts Volpina, who claims that she is jealous of her and Adrien's relationship, the latter gently dismissing her claims before running off to transform. While Ladybug and Cat Noir are distracted by several illusions of herself, another illusion of Volpina kidnaps "Adrien" and takes him to the Eiffel Tower, threatening to throw him off if the heroes don't give up their Miraculouses. While Ladybug prepares to give up, Cat Noir isn't fooled and destroys the illusion, and he and Ladybug chase the real Volpina up to the top of the tower. Volpina creates an illusion army of herself, however, using her Lucky Charm, Ladybug summons an ice cream bar, which gives out a powerful light in order to blind and gives away the real Volpina. Cat Noir then traps Volpina using his Cataclysm, allowing Ladybug to destroy her necklace and de-akumatize her. Ladybug apologizes for her overreaction previously, hoping to settle Lila's anger, although she refuses to forgive her, claiming they'll never be friends before storming off. From his lair, Hawk Moth, sensing that Lila is still angry, ominously says that Ladybug hasn't seen the last of Volpina.

Season 2
In "The Collector", Marinette mentions Lila while telling Master Fu where she found the Miraculous Spellbook.

In "Sapotis", Alya, after using the Fox Miraculous to transform into Rena Rouge, remarks how she looks "like Lila when she was akumatized".

In "Catalyst", after Gabriel Agreste remarks that he won't forgive himself if his latest plan fails, Nathalie Sancoeur tells him that it is flawless, as Lila has spent months growing her hatred of Ladybug and it will be peaked now that everyone is celebrating her on Heroes' Day. At the same time, Lila, live streaming to her classmates from the Kingdom of Achu, tells Miss Bustier's class about how Prince Ali had invited her family to stay in his palace. Marinette quickly tries to debunk her claims by pointing out that Prince Ali is in the U.S., but Lila rebuffs this by reminding her she never said Prince Ali was with them. Lila then tells the class that, for her Heroes' Day assignment, she is going to get Prince Ali's approval for a project to reduce pollution in several different countries, claiming even superheroes like Ladybug can't solve every problem.

Upon ending the stream, Lila, who was really just in her room the whole time, is met by her mother, who is wondering who she was talking to on the phone. Lila lies and says it was her boyfriend Adrien, and further claims that the school is still closed because of the constant akuma attacks. Her mother is subsequently called by Mr. Damocles, although Lila convinces her not to answer him as he's probably been akumatized as well. They are both then interrupted by the Heroes' Day parade, which irritates Lila. Following her mother's leave, Lila is seen bitterly scrolling through news feed of people showing their appreciation for Ladybug, when, as part of Gabriel's plan, she comes across an interview featuring him. Gabriel claims that to show his appreciation towards Ladybug for saving him, his son, and Paris on numerous occasions, he is financing a movie about her, while also dismissing fake heroes like Volpina.

Seeing this, Lila is driven over the edge and proclaims her hatred of Ladybug. Sensing her anger, Gabriel transforms into Hawk Moth and sends an akuma after her, which attaches to her bracelet. Greeting Hawk Moth, she is offered the power of illusion again and the opportunity to get back at Ladybug, which she readily accepts, turning back into Volpina. Over the parade, Volpina casts an illusion of an evil, akumatized Ladybug duelling with Cat Noir, culminating in Ladybug destroying the latter with his own Cataclysm, imbuing all of Paris with fear and sadness. Pleased, Hawk Moth contacts Volpina and tells her that she played her part perfectly and will see him again soon, Volpina claiming that she can't wait. Hawk Moth then revokes Lila's Akuma, and she, smiling, watches as it is de-akumatized and her illusion fades away. Later, after Hawk Moth re-akumatizes most of his past victim's thanks to Catalyst's empowerment, Lila is presumably transformed again off-screen.

In "Mayura", as the final step of Hawk Moth's grand plan, Volpina is summoned to the Eiffel Tower and creates an illusion of him to hold Ladybug and Cat Noir's attention while they are shot by Dark Cupid's arrows and imbued with hatred in order to make them vulnerable to akumatization by the real Hawk Moth. However, the plan fails when Ladybug spots Hawk Moth due to the reflective cover of the Miraculous Box she received from her Lucky Charm, resulting in Hawk Moth's cane being destroyed by Cat Noir, de-akumatizing everyone at once. When this happens, Lila is shown being shocked at the sight of her purified Akuma flying away. She is last seen bitterly looking down on the picnic Marinette had thrown for her class before closing the shutters on her window.

Season 3
In "Chameleon", after finding that the class seating has been rearranged, leaving an open spot beside Adrien, Marinette believes that Alya had set things up so that she could sit with Adrien, only to quickly find out that she is really sitting in the back, since Adrien's new seating partner has a hearing problem and has to sit in the front. Lila subsequently arrives and sits down beside Adrien, and Marinette skeptically asks about her hearing problem. Lila claims that she has suffered from tinnitus ever since she burst her eardrum while saving Jagged Stone's kitten, and then becomes excited with the idea of having Adrien help her catch up on all the school she missed while travelling the world with her parents. Marinette complains about having to sit alone at the back of the class, and Adrien offers to switch spots with Marinette, which both she and Lila firmly oppose. Lila pretends to mope about how her return has caused problems for everyone and how she should have stayed on the other side of the world, gaining everyone's sympathy and forcing Marinette to sit in the back.

Outraged by Lila's lies, Marinette becomes vulnerable to akumatization, only to back down before she can be akumatized, though Hawk Moth remains confident that her emotions will get the better of her again. During lunch, Lila has her classmates hand her food, telling them that she can't do it herself due to a sprained wrist. Marinette angrily informs Alya and Nino that Lila is manipulating everyone and explains to them why she believes she's a liar (summarizing her appearance in "Volpina"), although, without clear proof, they both refuse to believe her. To prove her point, Marinette hurls a napkin at Lila, and she catches it with her "injured" wrist, proving she was lying about it. However, Lila quickly covers herself by pretending to be hurt and claiming that she was trying to save Max since she saw a man get his eye gouged out with a napkin while in India and didn't want the latter to be hurt in the same way. As Marinette's classmates turn on her, Lila tries to sway their anger by claiming Marinette was really just trying to hand her a napkin, causing the latter to angrily storm off.

In the bathroom, Lila confronts Marinette on why she doesn't like her, insisting that they should be friends and that she could even help her with Adrien, but Marinette rebuffs her by stating they will only be friends when she stops lying to everyone. Lila quickly remarks that she only tells people "what they want to hear", which Marinette calls out as plainly lying. Lila, unconcerned, smugly remarks that there's nothing Marinette can do about what she's said anyway and threatens to make her lose all her friends and destroy her chances with Adrien if she decides to work against her, leaving her to decide whose side she's on by the end of the day. After Lila leaves, Marinette enters a state of distress, concerned about the former ruining her entire life, making her once again vulnerable to akumatization. In the hall, Lila meets up with Adrien, asking him when he is going to help her catch up on her studies and if he could also help her learn piano as well, claiming that her uncle was a great pianist who was unable to teach her due to arthritis. Adrien agrees to take up Lila's proposal yet kindly asks her not to lie to him as she did before, even offering to help her out if she has a problem.

Upset by Adrien still thinking she's a liar because of Ladybug, Lila storms off, believing that he's trying to act like Ladybug as well by lecturing her. At the same time, Marinette, with help from Tikki, drives off the Akuma by losing her negative emotions, confusing Hawk Moth, who quickly decides to grab onto another source of negative emotions instead. Immediately afterwards, Lila, still furious with superheroes, spots the Akuma and, wanting to have powers again, grabs it and plants it in her earring. Lila then greets Hawk Moth and asks to have supervillain powers so that she can destroy Ladybug, and he agrees, transforming her into Chameleon. Lila, like Chameleon, heads off to Adrien after this, feigning remorse for her actions while stating that she wants to make peace with him. She then kisses him, both stealing his appearance and putting him to sleep, sarcastically remarking that she lied about her claims. After stuffing the real Adrien in a locker, Chameleon heads up to Nino, insults him, and steals his cap before hopping away to the Eiffel Tower, with Ladybug following her.

Chameleon quickly starts causing chaos in order to slow Ladybug down before hopping up to the Eiffel Tower, remarking how the former always shows up at the first sign of trouble. Chameleon then falls off the tower so that Ladybug will save her, and she tries to kiss her in return. However, Ladybug refuses this, knowing that she isn't the real Adrien and the two fight. Ladybug holds Chameleon down and tears Nino's cap, believing it to be her akumatized object, only for nothing to come out and the former to get away. Ladybug chases after her, and she takes the form of a boy names Quentin in order to sneak up and kiss her, only for Cat Noir to show up and take the kiss instead. Now transformed into Cat Noir, Chameleon attempts to steal the real Cat Noir's ring but is stopped by Ladybug. Chameleon summons Cat Noir's Cataclysm and engages Ladybug, who runs away, encouraging the former to follow her. Hawk Moth commands Chameleon to take Cat Noir's Miraculous, but she denies him, wanting to take Ladybug's first, immediately chasing after Ladybug in response. Chameleon confronts Ladybug on the Eiffel Tower, where she summons her Lucky Charm and receives a T-shirt, with the former arrogantly certain that she can't do anything to stop her with it.

Chameleon engages Ladybug again and tries to kiss her and put her to sleep, only for Ladybug to make her use her Cataclysm on the tower, bringing them both to a cafe stand on the lower level. There, Ladybug tricks Chameleon into kissing an oyster, transforming her into one as well. As Cat Noir wakes up and returns to her side, Ladybug has the woman at the stand open Chameleon's mouth using a prying tool and the T-shirt, destroying her akumatized object (now a pearl) and deakumatizing her in the process. Seeing that Lila was Chameleon the whole time, Ladybug remarks that she can't lie about being saved by her now and successfully calls a truce between them. Ladybug subsequently advises Lila not to lie in order to get people to like her, as they will like her for being herself, and she agrees. However, after Ladybug and Cat Noir leave, Lila stares off hatefully, revealing she was just pretending to change. Hawk Moth, knowing her skill at lying and that she's still holding onto her grudge, says that Lila's hatred for Ladybug will end up serving his goals one way or another.

Back at school, Lila continues to lie about her relationship with Ladybug, and Marinette prepares to call her out, only for Adrien to talk her down, claiming that humiliating Lila will only make things worse and that it doesn't matter so long as they both know the truth. When class resumes, Adrien, admiring her choice of the high route, decides to sit at the back with Marinette — to Lila's confusion — resulting in Marinette missing Miss Bustier's attendance call three times. Thinking Marinette actually does have hearing problems now, Miss Bustier decides to place her at the front of the class with Lila. In order to avoid sitting with Marinette, Lila tells Miss Bustier that her tinnitus has gone away thanks to Ladybug and that she can now sit at the back of the class with Adrien. Ironically, this ends up setting off a domino effect, resulting in everyone switching back to their original seats, leaving Lila alone at the back of the class. After school, Lila confronts Marinette, declaring that they are both at war. She promises to make her wind up all alone and steal Adrien from her, however, Marinette calmly blows her off. Shocked at Marinette's response to her threat, Lila walks away in a huff.

In "Onichan", Lila is shown getting ready for school while listening to a message given to her by her mother, who claims she will again be late tonight but will make sure to spend time with her on the weekend. Lila then leaves her house and is met by Nino, who notices that she looks upset. She convinces him that the reason she is troubled is that she will have to pass up a chance to go to a gala with her mother because of all the homework she missed in her first trimester, and that she doesn't want to ask Adrien for help because he will think she's in love with him as his other fans, thus getting Nino to ask him for help for her. Later on, Adrien approaches Lila and offers to help her with her homework, while, at the same time, Marinette spies on both of them. Lila then tells Adrien that they would work better at his house, which he disagrees to since his father does not allow his friends to be over, though Lila is sure she can convince him otherwise.

Lila proceeds to exit the school with Adrien and manages to persuade his bodyguard into letting her come back to the Agreste mansion with them; while, at the same time, Marinette peruses them. Once they reach the mansion, Lila is confronted by Nathalie, who refuses to let her inside until she fools her by saying that Adrien needs help with his math homework and that she will only need to be in the house for a half hour, although Adrien criticizes her for lying afterwards. In Adrien's room, Lila begins to snoop around and becomes jealous after seeing photos of both Kagami Tsurugi and Ladybug. Nathalie then comes to tell Lila her time is up afterwards, and she takes a photo of her kissing Adrien before leaving, which she immediately sends to everyone in the school, including Kagami. As she is about to exit the mansion, Gabriel spots Lila, who quickly proclaims that she is his biggest fan before rushing out. Outside, Lila spots Marinette (who had fallen in a pile of garbage as a result of her attempt to get into the mansion), and considers posting a photo of her on the Internet to humiliate her, but deems this as "too easy".

At the same time, Gabriel chastises Nathalie for letting Lila in his house, claiming that he doesn't want his son to be influenced by his friends, yet, at the same time, the photo she had sent may be useful in keeping her away from him. Surely enough, Kagami is heartbroken upon seeing Lila's photo, allowing Hawk Moth to akumatize her into the villain Onichan to seek vengeance on Lila. Onichan immediately sets out after Lila and tries to force her to renounce Adrien, and becomes further enraged as she continues to lie. Cat Noir then arrives and fights Onichan while Ladybug helps Lila escape, although she is ungrateful and claims she can take care of herself. Onichan manages to catch up to them and touches Lila with her sword before she runs away, stating that there is nowhere she can run from her. Lila manages to stop Roger Raincomprix and convinces him to help her, and afterwards notices that a red horn is forming on her forehead. Then, Roger checks his phone to see a strange message, which causes him and Onichan to switch places.

Lila runs out and tries to get help from Sabine Cheng in her bakery, only for her to also swap places with Onichan upon checking a strange message on her phone. As Onichan is confronted by Tom Dupain, Lila escapes and lies to Ladybug and Cat Noir by claiming she now trusts them, causing her horn to grow. Ladybug switches place with Onichan after checking a message, which causes her to realize that Onichan transports herself by sending messages to those that Lila lies to and manipulates. Onichan again catches up to Lila when she runs away and tries to force her to renounce Adrien, which she does, only for her horn to grow and give away the fact she is lying. Onichan tells Lila that the only thing that will make her horn go away is if she gives up Adrien sincerely, and, seeing an opportunity, Lila responds that the only thing that will get her to renounce Adrien is if she eliminates Ladybug; a claim which amazes Hawk Moth. As Ladybug and Cat Noir arrive, Lila pretends to have hurt her ankle and has the latter take her away, leaving Ladybug to be defeated and restrained by Onichan. Cat Noir manages to stop the Fire Captain and tries to get him to take Lila to the hospital, and in the process stops him from looking at a message sent by Onichan.

After inspecting Lila's leg, the Fire Captain reveals that she isn't injured at all, causing Cat Noir to angrily realizes that she deliberately got him to abandon Ladybug so that she would be defeated, and has the Fire Captain swap places with Onichan before she can take Ladybug's Miraculous. Formulating a plan, Ladybug has Cat Noir bring Lila back to her, which causes her to receive one of Onichan's messages, thus allowing them to swap places, leaving Onichan restrained and open to being deakumatized. Cat Noir then takes Kagami back to her home, while Ladybug, noticing that Lila's leg has "healed", leaves her to walk home by herself. At the same time, Hawk Moth, instead of mourning his defeat, remarks that it was unwise to try and keep Lila away and that she will be a great ally. The next day, Lila tries to get Adrien to help her with homework again, though he chooses not to, telling her that her lies had gotten Nathalie and his bodyguard in trouble and that he won't help her if she hurts the ones he loves. Then, Lila receives a call from an unknown person, who is later revealed to be Gabriel Agreste. Gabriel and Lila meet at the former's mansion, where he decides to allow Lila to be friends with Adrien, noting that they will meet again soon.

In "Miraculer", as part of their new plan to bring Chloé over to their side, Gabriel and Nathalie decide to use Lila to manipulate her into losing faith in Ladybug. The two drive up to Lila as she is reading in the park, and she tells them of how grateful she is for Gabriel letting her protect Adrien from bad influences, particularly voicing her disdain towards Nino, Marinette, and Chloé; the latter of whom she claims is too busy boasting about being Queen Bee, though Adrien is so perfect he doesn't care. Gabriel tells Lila that Chloé and Adrien won't be easy to separate since they have been friends for a long time and then promises that they will meet again soon before driving off. In his limousine, Gabriel states his confidence to Nathalie that Lila will swiftly take care of Chloé for them. Surely enough, Lila goes to school and greets Chloé, Sabrina, Marinette, Adrien, Nino, and Alya as the former is complaining about Ladybug not calling on her to help fight akumatized villains, though upon seeing her Marinette quickly pulls Alya away to study, and Adrien and Nino follow.

Left alone with Lila, Chloé fails to recognize her, claiming that she mustn't have made a strong impression on her when Sabrina points out that she’s in their class. Lila then brings up the topic of Ladybug and states that the both of them are actually good friends, much like how she and Chloé "used" to be, and further claims to have a magic code that, unlike Chloé's Bee Signal, always brings Ladybug to her. Chloé initially shrugs this off, only to become interested when Lila offers to share her code, telling her that she'll know if Ladybug is a true friend or not if it works. Once Lila leaves, Marinette tries to warn Chloé about her and tell her that Ladybug will come on her own, although Chloé begins to think that she's making fun of her and walks away Following this, Hawk Moth senses that Lila has succeeded as Chloé's anger is rising and sends Mayura off to further their plan, with her creating a giant lollipop Sentimonster from August’s frustration to cause destruction.

Seeing the monster, Chloé decides to use Lila's code to bring Ladybug to her—said code is jumping around in a circle on one foot while chanting Ladybug—though this fails to work before Ladybug succeeds in defeating the monster. Chloé angrily realizes that Lila had tricked her and subsequently lashes out her frustration on Sabrina, which makes her vulnerable to being akumatized after Hawk Moth's attempt at doing so with Chloé fails. The next day, Chloé angrily confronts Lila over her deception, though she is quick to point out that she actually did end up spending the day with Ladybug in fighting against Miraculer with her. Realizing that Lila is technically right, Chloé deems that she "isn't totally useless" before walking away, Lila being seen smirking in response.

In "Timetagger", Lila babysits Ella, Etta, and Chris for Alya and Nino. She tells Chris that not only does she play the game Freestyle Clash 2 — she invented it. When Chris asks if this is true, Lila says that she never lies and kisses his nose, causing Chris to think that she’s cool.