Sakusa Kiyoomi former husband of Atsumu Miya, they divorced due to consent arguing about Kiyoomi's Mother

She always had something to say about Atsumu, she didn't like the fact that her son had a male partner and also had a son with Atsumu, this lead to problems between Atsumu and Kiyoomi

Kiyoomi and Atsumu spilt up although they still loved each other, Atsumu had custody of their son and Kiyoomi was given visitation rights, to see Naoyuki, his son on weekends