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Kya hahahahaha! Come on. Let's not do this. Let's be friends again.
~ Rina to Rena, a few seconds before she starts strangling her

Ritsuko "Rina" Mamiya is a character from Higurashi no Naku Koro ni. She is the secondary antagonist of Tsumihoroboshi-hen and Miotsukushi-hen, and whose death usually causes Teppei Hojo to return to Hinamizawa and abuse Satoko Hojo in Tatarigoroshi-hen, Minagoroshi-hen, Tsukiotoshi-hen, and Miotsukushi-hen.


Rina is a pink-haired woman who works primarily as a showgirl in a Sonozaki-run establishment called the Blue Mermaid. Teppei Hojo is her lover, and most likely her pimp. He lives at her apartment, and most likely off her 'wages' as well. Together they get money from men through a variety of schemes and blackmail techniques. She doesn't really show up recognizably until Tsumihoroboshi-hen, where she's gotten together with Rena's father in what will ultimately be an attempt to extort money from him. When Rena realizes this, she confronts Rina in the junkyard. Rina, not one to take such things lightly, attacks her. In the end Rina is killed, triggering the reemergence of Rena's syndrome.

In most arcs her death is simply what causes Teppei to return to Hinamizawa. Not surprisingly, Rina is in with some bad characters. She was involved in an attempt to steal money from the Sonozaki's with some former members of their group. Based on the TIPS from the games, she was being pursued by the Sonozaki's who catch up with her just as the culprits are about to make their get-away. In these arcs she is the only one noted as getting caught, and was most likely tortured to get information on the others before she was finally killed in a way reminiscent of the ancient Watanagushi-type rituals of ancient Hinamizawa. It is her body we see in the storm drain at the beginning of Tatarigoroshi-hen. Even though Teppei was never a part of the scheme, as she thought him too stupid to be of any use, he was still closely tied to her, so her murder causes him to return to escape what he fears will be a yakuza retribution on him.




  • In Higurashi no Naku Koro ni Chikai, she is always called 'Ritsuko', and never 'Rina'.
  • In Tsumihoroboshi-hen, Rena's father buys her a luxury condominium called the "Palace of Versailles" in Shishibone city. The estimated price is around 50 million yen.
  • Her measurements (in Bust-Waist-Hips and in centimenters) are 89-60-87. She is 168 cm tall.
  • Her hobbies are indoor gardening and tea brewing with herbs she grows.
  • An interesting thing to note about Rina's last name (Mamiya) is that it closely resembles Rena's surname (Ryūgū) in the sense that both surnames share the same last character "宮", which means "palace".
  • Her physical appearance in the original visual novel bore a strong resemblance to Ayane from Dead or Alive.


           When They Cry Title] Villains

Higurashi: When They Cry
Gangsters | Juuza Amakusa | Rena Ryuuguu | Rina Mamiya | Shion Sonozaki | Shirou Hanada | Staff Leader | Tamae Hojo | Teppei Hojo

Commanders: Miyo Takano | Nomura
Nail Ripper

Okonogi Tetsurou


Umineko: When the Seagulls Cry
Beatrice | Bernkastel | Eva-Beatrice | Featherine Augustus Aurora | Lady Lambdadelta | Virgilia | Yasu

Chiester Sisters Imperial Guard Corps
Chiester 00 | Chiester 45 | Chiester 410 | Chiester 556

Gaap | Ronove

Earls of Hell
Furfur | Zepar

Eiserne Jungfrau
Leader: Dlanor A. Knox
Cornelia | Gertrude

Seven Stakes of Purgatory
Asmodeus | Beelzebub | Belphegor | Leviathan | Lucifer | Mammon | Satan

Ushiromiya Family
Patriarch: Kinzo
Eva | Kyrie | Rosa | Rudolf

Black Battler | Erika Furudo | Kasumi Sumadera

Higanbana No Saku Yoru Ni (unofficial)
Hikaru Nihei | Nafumi Shintani | Yoshihito Kanamori

Higanbana Odoru

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