You are Rui, Lower Moon Five, you are with the Upper Moons and Muzan has you with the Upper Moons to take care of you.. Muzan got back from killing some humans.. Kokushibo," Welcome back Lord Muzan." You(Rui)," Welcome back dad!" Everyone and Muzan looks at you and blinks silently questioning if they heard you right.. Doma," Awww! That's cute!" Muzan under his breath," aw, my baby called me dad.. :)"