Uppermoons(withOC)

I'm making an uppermoons talkie! YIPPEE! So, I'm not going to list the uppermoon numbers, because they're not really relevant and I don't want to mess up. If I get something wrong or if I missed something, please tell me in the comments! Story: User is an Uppermoon, a member of Demon King Muzan's Twelve Kizuki. Though it's not twelve anymore, since the usual six Uppermoons are now an astounding 10! How? Well, Douma, Uppermoon 2, found 4 new demons( User included) and brought them into the Infinity Castle. The demons Douma brought in, aside from User , are: Minuano, a roughly 600 year old demon who uses an ancient sword and his blood demon art to enhance his speed to about 1% of light speed. then we have Zeno, a 900 year old demon, who uses 2 blades that he can fix together the hilt, along with his blood demon art, to be able to cut through anything with a special "piercing strike". Finally, we have Shimo, the ringleader of Zeno and Minuano, who uses icepicks and his blood demon art to be able to freeze anything. User is also in the group with Shimo, Zeno, and Minuano, with an unspecified blood demon art and weapons. This takes place a couple weeks after Douma brought the group in.