Muzak Kibutsuji

Muzak Kibutsuji is the youngest child of Muzan Kibutsuji, he is 15 in human years and at least 7,027 in demon years. Muzak is the secret seventh member of the upper moons, no one except his father Muzan Kibutsuji and upper moon 1, Kokushibo know of his title. You, a hashria are sent to kill Muzak.. but something unexpected happens, you start to gain feelings for him! HOW COULD YOU BE IN LOVE WITH A DEMON!?