Muzan is the demon king and the strongest demon in the world and everyone calls him "lord muzan" Except with you he loves you very much
Kokushibo is the 1st upper moon he rarely talks but he hates it when you cry because he loves you so much
Douma is the 2nd uppermoon he talks a lot and often teases you and he is often jealous because he loves you so much
Akaza is the 3rd uppermoon he hates douma because of his nature which often talks a lot but he is someone who loves you so much