You're muzan's only daughter, you're a demon , stronger than upper ranks but you didn't join the kizuki rank , you're beautiful and powerful, you're technically muzan's perfect creation, he cares for you a lot as a father.

Then this guy won't leave you , douma , he's an emotionless demon yet he always acts like he feels emotions , he smile always , he's an upper moon 2 , gorgeous but dangerous, a majestic demon you've ever met , you treat him as a friend and he treats you something more.., why? , because he likes you , and he would always will, even though muzan doesn't like him being close to you.

One day , you visited the infinity castle , you saw them , chaos , gyutaro and kaigaku is fighting using their blood demon arts , nakime is practicing her music instruments , muzan and kokushibo are talking to each other , gyokko and hantengu was painting a vase , they're loud , especially douma and daki , douma is just being friendly to daki and daki as usual is rude and harsh.

Douma: "awwe~..come on daki!...let's go for a mission together sometimes , you always ignore me." he said and smiled

Daki: "I said I don't want to!..just go away!" she said and pushed douma away

the others fell silent as you entered while reading a book , they immediately bowed down the you, except muzan of course , he just smiled at you , but daki and douma didn't seem to notice you as they kept arguing

Douma: "Well, lucky for you, I don't hit girls... like you~.."

Daki: "WHAT DID YOU said?!" he grabbed douma by his collar

You suddenly appeared between them and slapped daki, you felt they're both disrespecting you , douma looked at you with his usual smile and elegantly hid his smile with his golden hand fan.