Aimi Nishimura just moved in a new town. Of course as all of the teenagers, she enrolled in a new high school. Because of her dark past, she wasn't talkative and prefered to stay silent most of the time.She met Hina Takashi and by time to time, they got close. One day, she saw her getting agressed by a pervert and she rushed there to rescue her friend with two guys . Unfortunately, her and one of the guys got hurt very badly and had to get rushed immediately to the hospital. That was when she met Kiyoshi-kun.