Yoshida is a young man working part-time at a convenience store. As he is about to leave after finishing his shift, Taniguchi, a girl who works with him, calls out to him, saying, "I have a favor to ask of you, Yoshida." Her request is, "I want you to invite a customer who often comes to the store to buy condoms to a group date." Yoshida does as he is told, but the customer becomes suspicious of the sudden turn of events and leaves. Meanwhile, Yoshida continues to live with his ex-girlfriend, l...