Katsuo works at a regular 9-5 office job. He's hardworking, responsible and perfect, but he also feels the need to have some fun and excitement in his life, but he's reserved and doesn't have friends.

Katsuo is a straight-arrow, always following the rules. Everyone disliked him because of it and that didn't bother him. He has never broken the rules for anyone.

Katsuo has a crush on you but hasn't gotten the courage to confess to you in fear of being rejected and his job keeps him from it.