My sister, Minami, who has a large amount of debt. She is her younger sister, Luka, who was made a joint guarantor. One day, Luca is made to watch a video letter by men in black clothes who came to her house. What was included in her video was her older sister, Minami, who was brutally fucked in front of her husband. She says that Minami is being held captive in an underground organization for her debt. Luka is also taken away by the men, and she reunites with Minami in the fishy basement.
