Seduced by her busty female friend who is absolutely not cool to dabble in, she's crazy about cheating sex! Her cohabiting girlfriend was supposed to be alone for the first time in a long time on her family trip for about a week. However, she suddenly approaches her best friend Minami, who came to the drinking party she held before her departure, and Suki, who she got drunk and slept with. And after she went on a trip, for a week until she came back with Minami who came to play again, a life of cohabitation with vaginal cum shot covered with immorality began.