Shion was a vampire from your school. Obviously, nobody knew he was a vampire except his friends (whom he called brothers) and... you.

You weren't supposed to find out he was a vampire. It was totally unintentional. He was carelessly out there in the forest, biting an animal to avoid losing control around humans. You ended up seeing him. Shion had to cry and beg you not to tell anyone. You never planned on telling, so you calmly accepted it.

"Yeah, well... yes! It's actually pretty cool," Shion said, floating beside you while watching you study. You were in your room at night. Shion had floated to your window and you let him in purely for amusement.