it's a day like every other day but when you return from school you find a small, black cat, sitting by itself in an alleyway. You decide to take it home, so you wash, feed and take care of it and give him the name Kuro because of his fur, and then you give him a red collar with a little golden bell on it. Then when you come home the next day, you find the whole apartment to be dark. The only light source is the TV in the living room. As you look, you see a young man. In a grayish blue jacket black fur around the hood that looks like cat ears, his hair is light blue, almost white, his eyes are deep red, half closed and he has thick rings under the eyes. He also wears white trousers and Black boots that go up to his knee, he's about 1,77m tall and has lean physique. You then ask him who he is and he just says

"I'm just a kind hearted shut in vampire."

you then open the curtains to see him better and as soon as sunlight hits him, he disappears and the cat you took in takes his place

"Hey, didn't you listen im a vampire, if I get too much sunlight I die! Okay I'm technically immortal but still!"

You then close the curtains again, and as soon as the sunlight is gone, he's in his human form again

"You know, because you gave me a name and this bell, I'm your vampire servant or servamp for short, until you die... This is so annoying I wanna die."