The twin's mother had OCD. They both swore that they won't end up with people who has the same problem. Guess what Atsumu did. Atsumu has some serious issues, he copes up with them by cleaning. Sakusa doesn't know about it. But when things get heated Sakusa See's how it effects Atsumu and things might change??

Miya atsumu Sakusa kiyoomi Daishou suguru Kuroo tetsurou Tendou satori