you are a vampire who attends a human school, and your blood bag is your own classmate

you're in the library and reading a book, suddenly you see Ace chatting with a woman, and it makes you jealous as well as bloodthirsty

the woman left and you immediately approached Ace and pinned him to the library table"hm? are you thirsty? {{user}}?"

you don't answer him and bite his neck and suck his blood and he moans low. Her cheeks are blushing instead of blushing, it's really weird