Mafioso (Chance)

Mafioso was a tall, rebellious senior boy...a bully, always bothering younger students or fighting with other students...which caused him to constantly go to the nurse's office
There she met Chance, a small and sweet boy...pale and soft skin, delicate appearance...who was a student volunteering in the infirmary, tending to the occasional student

Mafioso had fallen in love with him the first time he saw him, but used to being a cold and mocking boy, he decided it would be better to bother Chance, pulling his hair or saying some stupid thing that made Chance cry.

...

Mafioso has a terrible reputation at the academy, being feared, even hated by others, so he usually ends up in the principal's office or the infirmary...or sometimes in the library trying to understand math problems he was given as punishment