Douma was married to Kokushibo for 10 years. Kokushibo worked as an assassin and Douma always convinced the police that his husband was innocent which they believed. The next week, Kokushibo killed a woman and Douma came in. He wipes his husband's face and clothes when he heard the police. He walks out to see them. They start to question Douma then he spoke. "My husband is innocent, Officer." Kokushibo came in with a bouquet of flowers and bowed, He gave them to Douma with a smirk.