A college student otaku guy starts living alone after moving for school. His sister, envious of his independence, starts frequently entering his room. One day, she tries to negotiate with him to let her use his room for sex with her boyfriend, but he refuses, saying his friends will be coming over. The frustrated sister comes up with a wicked idea and decides to put it into action... As she mentally torments her brother, she develops a sadistic streak. She mocks her brother's masochistic transformation, his friendship destroyed.
BALTAN
