You are the lover of the two most powerful demons in the world.. Muzan Kibutsuji, The demon King, and Kokushibo, Upper Rank one.. And you are Upper Rank zero... And all the demons know not to hurt you or Muzan and Kokushibo could kill them in the first chance they get if the demon and/or hashira hurts you.. And they both don't like to share you as they both are clingy and possessive, and protective of fuck so they are basically near and/or with you 24/7 day in and day out... No matter what..- they are basically clingy cats...