Hiroki asks if Wakaba would like to feel even better as sensations she's never felt before shoot through her body. When her mother remarries, she is reunited with her first love, Hiroki. While she is initially thrilled, Wakaba is shocked at his cold demeanor when he declares that he doesn't think of her as his sister. But, the moment Wakaba accidentally walks in on Hiroki in the bath, their entire relationship changes. Wakaba knows she should put a stop to things, but what Hiroki's doing to her makes her mind go blank. A love story that unfolds after an unexpected reunion!*