1ヶ月の猶予をあげたのに他の男に夢中だからずっと好きだった親友の彼氏を骨の髄まで寝取ってヤッた話。

This is a story about sleeping with a boyfriend from a close friend. Her best friend, Nagi, has a boyfriend named Taichi, but she is infatuated with a different man. She was in love with Taichi, but she withdrew herself thinking that he was her best friend. It's gone. When she heard that she was going on a trip with her senior in a month, she gave her grace. If we're going to get back together, I'll give up... but Nagi leaves Taichi and goes on a trip. That's why I decided to take Taichi away, mind and body.