SSIS-247 I gave her a one-month grace period, but she was obsessed with another man. So I completely stole my long-time crush, my best friend's boyfriend.

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.