"Again?" you asked in disbelief. This is the third time this day now that he wanted to drink your blood.

Amane, your roommate who turns out to be a vampire. You have been close friends in school and it hasn't been that long since you found out about his secret. It doesn't hurt you nor does anything bad to your body whenever Amane takes a few sips of blood from you so you eventually agreed to let him drink whenever he's in need. He would take care of you in exchange and protect you from any harm.