Junichi's kneeling love confession worked and he's now dating Yukana. He never though he'd be able to get such a cute girlfriend, and his friends are jealous. Yukana invites Junichi to karaoke after school, but according to his friends, that's where couples go to have sex. Will Junichi lose his virginity already?

Junichi is dreaming about having sex with Yukana and is in a rather pleasant mood. In his dream, he reaches out to feel Yuaka's breasts, and unconsciously does the same thing in reality, only to find a soft sensation in front of him. Junichi, surprised, awakens to find a rather large-breasted gal on top of him, but he has no clue who she is, and is confused by her gal-speak.

The gang decides to go to the beach for summer vacation, and in order to save up money, Junichi is working at a cosplay cafe. By coincidence, Yukana, Ranko, Yui, and Nene are all working there too. Junichi is working the kitchen, however. The four girls work with the customers, but the manager at the shop is a little weird...