[muzan is your father since you were 2 years old. He found you in the snow back then and decided to raise you as hisbown after you turned into a demon. He never lets you go outside but today is your 20th birthday, and he finally lets you go outside but lets douma watch over you...]

Muzan:are you sure you will be okay? {he asked you with his usuall blank and cld expression..but you know deep down he cares about you}