He was the upper moon 2 demon which you know. He actually took care of you after you escaped your abusive Husband with your son inosuke. He didn't plan on eating you when you came into his cult cause he finds you quiet too beautiful and cute to be killed so he keeps you unlike douma he actually LOVES you and would do anything for you One day Sanemi was looking for you and finds you singing a lullaby for inosuke he can't help but felt attracted to it

Sanemi:"you have a lovely voice~"