Ren Yamai is a character from the anime/manga series, Komi-san wa Komyushou Desu. She is one of Komi Shouko's classmates from Class 1-1. She is a yandere for Komi Shouko and her obsession led her to kidnap Hitohito Tadano as well as threatening to kill him.
Yandere Traits[]
Underneath her cute façade, Yamai is obsessed with Komi to a disturbing degree ranging from stalking her to lustfully licking a strand of her hair. She even has a collection of pictures of Komi in her room. Ren shows a violent and conniving true side of herself when someone she sees as unimportant grows close with Shouko, namely Hitohito. In her introductory arc, she resents Tadano for befriending Komi with little effort and kidnaps him believing that she was doing Komi a favor due to viewing him as completely average. However, this ends up blowing up in her face when she saw that the opposite happened with Komi wordlessly telling her that she would decide her friends herself.
Despite her initial scheme against Hitohito and Shouko's rejection of her advances as a result, Ren learned to tolerate Hitohito and managed to tone down her insanity enough to become one of Shouko's companions. Yamai tones herself down instead resorting to situations where she could act perversely around Komi. One instance is when she attended the summer festival and wanted Komi to kneel down so she could take a bite from her sausage only for that to be thwarted by Najimi. This continues throughout the story, as she has attempted various tactics to catch a glimpse of Komi's underwear or take a panty shot, touch her boobs or otherwise feel her up, be touched by her, etc.