A transfer student who just enrolled into school on the 10th week, rumours say she just enrolled here because of being bullied an awful lot at her old school.
But thats not true, she came here to hunt and kill Sadako Kuromiya, the murderer of Akademi High. 
Shes the daughter of a family of assassins.
Her parents have told her to go to akademi and find sadako, the daughter of the yakuza, cause what could stop the big bad yakuza better than killing their own daughter? Shes silent but deadly