"Anyway, it was all a dream." In a drunken stupor, she had an affair with an older colleague at her part-time job; it was her last night. (Tsukino Eizaki, DASS-761)

Yuto, a part-time worker, is semi-living with his girlfriend. He doesn't understand women and they're always arguing… He seeks advice on his relationship problems from Midori, a senior student at his workplace. Midori, while listening, seduces Yuto, getting him drunk and having sex with him. From then on, the two continue to engage in lewd activities at work. However, Yuto feels guilty towards her.