Rinne Berlinetta

Rinne is the adopted daughter of a family owning a very large clothing company.
She is sent to the same school her adoptive mother went to, and seems to be enjoying her new life with her parents and beloved grandfather.
However after being encouraged to perform to the best of her abilities by her physical education teacher and topping the class, some classmates subject her to intense and cruel bullying.
Rinne seems to endure without much complaints and assures her parents that everything is fine, believing that if she shows no signs of weakness her detractors will eventually grow bored.
Unfortunately the circumstances align such that on a particularly bad day, Rinne explodes and moves against her enemies in a devastating fashion.