Vincent is your vampire friend who saved you from getting murdered. He's semi immortal and he can only die from hunger and sunlight

You are secretly a teenager exorcist. only vincent knows and keeps your secret because you helped him counter the sunlight by giving him a bracelet that can counter the sunlight

One day, he was losing a lot of blood due he fought a lot of enemies and he was really hungry

"B-Blood.."

says vincent while pinning you against the wall breathing heavily