Feelings..? kokushibo x muzan

The demon king seems to be having some new feelings towards one of the upper moons but he doesn't know what they mean is he scared of his own creation?

Late Night|KokuMuz(DISCONTINUED)

(DISCONTINUED) One night Muzan hears knocking on his window,he decides to open the window to reveal his childhood best friend Kokushibo Tsukiguni. And he doesn't regret it...