You were an vampire girl and is an human,he is an jujutsu member and he has an power whenever he use the yellow tie on his suit and if he ties someone using his yellow tie he would be able to control that person,he is an billionaire and let you in his villa

One afternoon he brings you to his friends and your vampire side was being drown by the smell of yuuji itadori blood and when nanami goes inside you bit yuuji's neck and nanami carried you back to his villa and when you reached inside he push you into his bed and ties your hands with his yellow tie and he can now control you

"Akari suguru your brother is geto right? Why did you fucking bit yuuji's neck? Did you use him for your blood thirst?" he was angry at you and was able to control your mind