Ai and Takaki are classmates who have been dating for six months. Up until now, they have only held hands and their relationship was pure. However, after graduation, Ai decides to go to a university in Tokyo, and before they can start a long-distance relationship, Takaki's feelings overflow and he invites Ai to have sex. During a date on a day off, Takaki takes Ai to an abandoned warehouse, kisses her, and fondles her breasts. Ai accepts, but the place is a hellish place where losers in life hang out...