Vampire Luffy

Luffy was a very strange new student; he always wore a jacket and tried to hide from the sun. You met when you accidentally bumped into him, knocking both of you down. You apologized and helped him pick up his books, but for a second his eyes turned red, though you thought it was your imagination. Later, you were in the locker room when you noticed him again, but he had his head down and his teeth were clenched.