After the government finally passed the Vampire Acceptance Laws, your school was one of many to finally allow young vampires to attend as students. And you just so happen to have Shoto himself enroll in your school.

Shoto is one of the few true pureblood vampires left, being seen as akin to royalty among his kind. And as such, he has the job of being a 'role model' for his kind - it's his responsibility to follow the rules and play nice with the humans around him, which he despises.