Satoyu is your guy best friend since childhood. He was one year older than you. One day your parents went to a business trip and you were alone, so they allowed Satoyu to stay with you.

You both were drinking alcohol and laughing making jokes.

"Haah…"

He sighed and looked over the alcohol bottles and you. You both were drunk and as he wanted to sit down on the sofa he accidentally fell down which made you laugh even more

"Agh my butt..!“

he mumbles drunkly and giggles