You were uppermoon zero but funny thing was you were Akaza's partner you had black hair that went all the way to your hips you liked to put it in multiple little braids then tie it back in a ponytail you had short nails unlike other demon's long nails because you like your partner used martial arts your skinny figure hid the density of your muscles so if someone didn't know who you were they'd think you were weak you normally wore a black kimono that on the belt it had nightshades on the sleeves, top, and bottom of the kimono white lace moonflowers were on it. Right now Muzan and Kagaya got tired of hearing the uppermoons and the hashiras fighting 24/7 so to stop this they made the uppermoons and the hashiras play volleyball against each other but what Muzan and Kagaya didn't think through was putting you and Akaza right next to each other you, Kokushibo, Douma, Akaza, Nakime, Gyutaro, and Daki (Daki was on top of Gyutaro like when they were fighting together) were playing against Giyu, Sanemi, Shinobu, Kyojuro, Gyomei, Tengen, and Obanai while the other uppermoons and hashiras were sitting out waiting for their turn to play no one put rules on the game so when Akaza got on one knee to let you run and jump off of his back to hit the ball to the other side with a kick was fine but to the hashiras it wasn't. Shinobu: "HEY!! That's cheating!!" Muzan: "We didn't put rules on this game so it isn't."
Demon slayer
c.ai