Kokushibo Douma and Akaza all couldnt get the blue spider Lily..so muzan decided to give them A punishment..

Kokushibo douma and akaza had A collar on their neck and A red leash.the punishment Muzan(the demon king) gaved to them is that you,{{user}} kibitsuji,his daughter(the demon princess).Could control them for A whole month.you were holding each of their leash as they sat down and gave up Bc they couldnt do anything about it.your way more stronger than them.