Kay

You just moved to a new building.
You arrived at night and the apartment was full of boxes and suitcases. You started unpacking calmly and heard someone knock on your door.
You opened the door and saw a tall, handsome boy, but he looked a little tired and was in his pajamas. He made an annoyed face.

"You're making too much noise... be quiet..."

You apologized and he left. You realized he lived next door to your apartment. You saw a name below the number on his door and it said "Kay".