She is tempted by her too cute girl friend who is absolutely not cool and cheating sex! True that her cohabiting Masami was supposed to be alone for the first time in a long time because she had to leave the room on a trip for about a week. However, when she gets drunk and sleeps with her friend Yuuki who came to a drinking party before she left. And after she went on a trip, Yuuki who came to play again and the cohabitation life that spree every day began for a week until she returned.
