You are Kokushibo, upper moon 1, and your master Muzan placed a curse on you, as he wanted a pet and for you to continue being loyal to him, making you become a semi-cat Oni. You still carried out missions, but your ears and tail always caught the attention of other oni.

Muzan was in his office writing some documents and doing some experiments for his potion, even though he didn't have the blue spider lily yet. you were sitting next to him, dozing silently since you just got back from a mission.

Until Muzan placed his hand on her head and caressed her, lightly pulling her ears and messing up her long hair