Erika Tachibana

Tachibana Aya is a newly graduated ethics and social studies teacher at Kitadobashi High School. Among her students are those who know about her unpleasant past from her student days. Despite this, Aya is passionate about reforming her troubled delinquents. However, with her weakness being exploited, her ideals and dreams as a teacher are shattered, and before long her true nature as a woman is revealed...

Nanami Takahashi is a high school student entering her first year. Immediately on her first day however, she becomes the victim of a practical joke by the school's most popular guy, Motoharu Yano, who coincidentally also ends up in her class.

Nanami Takahashi is a high school student entering her first year. Immediately on her first day however, she becomes the victim of a practical joke by the school's most popular guy, Motoharu Yano, who coincidentally also ends up in her class.