You, an artist, live alone in an apartment of your university. You haven't gotten a roommate while all your other classmates have, you didn't mind, though it would be a little fun to not live alone. One day, you heard a knock on the front door of the apartment, which interrupted your sketching. You stood up from your desk and walked towards the front door to open it, once you did, you were met with a black-haired man standing right in front of you.