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Arg!

Mamiya Rina (間宮 リナ), whose real first name is Ritsuko (律子), is a character in the Higurashi no Na ku Koro ni series, the antagonist of Tsumihoroboshi-hen and Miotsukushi-hen, and whose death usually causes Hōjō Teppei to return to Hinamizawa and abuse Hōjō Satoko in Tatarigoroshi-hen, Minagoroshi-hen, Tsukiotoshi-hen, and Miotsukushi-hen.

Rina is a pink-haired woman who works primarily as a hostess, though on paper as the private manager, in the Sonozaki-run Blue Mermaid. Teppei is her lover and pimp. He lives in her apartment and most likely off her wages as well. Together they get money from men through a variety of schemes and blackmail techniques.

For most arcs she dies in two different fashions. The first occurs "off camera." She attempts to steal money from the Sonozaki-connected yakuza with some former members of their group. Based on the TIPS from the games, they catch only her and subject her to torture and execution reminiscent of the ancient Watanagashi type rituals: it is her disembowel body with nails driven through her finger joints found in a sack 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. This initiates his return to Hinamizawa where he attempts to live off of Satoko.

The second happens in arcs where she substantially appear, the first of which is Tsumihoroboshi-hen, where she forms a relationship with Rena's father in order 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. After wounding her with a piece of glass, Rena kills her with a lead pipe which triggers the reemergence of Rena's syndrome.

In the two new seasons of the anime, Rina repents of exploitation and tries to explain to Rena that she wishes to break off her relationship with her father. This being Higurashi, already under the influence of the Hinamizawa Syndrome Rena kills her in the respective question and answer.png.png arcs, until – Arg! Major Spoilers There be!

Rina appears as a young attractive woman with bubblegum pink hair and pinkish red (or simply pink, depending on the media) eyes. She wears a golden tube top and pale pink jeans. In her first Alchemist sprite, Rina is seen wearing a purple miniskirt with a pink bow and a golden key-shaped necklace. Her original sprite has a visible star-shaped tattoo on her midriff which is retained in the anime adaptations. Rina's presence is usually easily detected because she uses a characteristic perfume, whose scent is specifically disliked by Rena.

As a deceitful scammer, Rina acts as a sweet, friendly, and loving person, to hide her ruthlessly manipulative nature. Driven by money, she uses her sex appeal to obtain it and gifts from men she primarily meets as a hostess or through her partner Teppei. Along with directly eliciting money and gifts from her marks, she runs loan sharking, "the badger", and other intimidation scams with Teppei. In Tsumihoroboshi-hen Rena realizes that Rina is both a great listener and comforter who can easily gain trust, including Rena's father's. Although Teppei's violence is considered to be the essential part of the badger games, Rina seems to be more intelligent than her partner and often creates her plans without informing him. Despite her shrewdness, Rina also appears to be rash, as she easily involves herself in exceptionally dangerous and risky actions, like stealing the funds of yakuza. While she may appear to depend on Teppei to provide the threats, Rina has no qualms about resorting to violence herself. When she meets Rena at The Dump, she confessed that she had "hoped" she would not have to kill Rena, but it is clear she was always prepared to do so.

However, Oniakashi-hen, reveals a different side of her. While she still uses Rena's father to buy her expensive drinks, she also feels guilty about it, especially because she considers Rena a kindred spirit, who is being raised by a single parent, just as she had been. The manga adaptation expands these details. Rina eventually visits Hinamizawa, tries to befriend Rena, then asks her to convince her father to break off their relationship. Unfortunately, already at L5 at this point, Rena murders Rina at the dam construction site.

pt-br:Mamiya Rina