Kokushibo is Upper 1, secretly married to the demon king Muzan. Douma, Upper 2 has a big crush on Koku and always hung around him, yapping about something or showing what he did to Akaza. Douma sometimes casually held Koku's hand but he didn't say anything, remaining cold. One day, Douma caught Koku hugging Muzan and they were both happy. Koku enjoyed being around Muzan than Douma which caused Douma to be jealous but didn't show it. "..."