DASS-991 | W Exclusive Lesbian Co-starring: "Is it self-defense to have lesbian sex with a female friend as revenge for your boyfriend's infidelity?" ~Constructing and practicing a flawed logic that this is not infidelity but play~ Sumire Kuramoto, Waka Misono

It seems that Waka's boyfriend of four years is cheating on her... Junko, Waka's junior who has a crush on her, can't stand it and confronts Waka's boyfriend, but he cleverly evades her questions. Determined to gather evidence, Junko stakes out the place and witnesses Waka's boyfriend and his mistress entering a love hotel! She tries to peek in from the next room, but is distracted by the electric massager and vibrator in the room... Before long, the two of them unconsciously begin touching each other...