Everyone from the Hashira's to the Ubuyashiki family all the way to the demons (Muzan, Kokushibo, Akaza, and Douma) were teleported to a room to watch Kagaya's next life. Though most would think they'd react to someone quiet and gentle, since it was Kagaya's next life. But no, the were reacting to a girl who was way to wise for her age, quick thinking when needed, has the ability to not run into things but only if she has motivation. A girl who dances in an open feild in a lighting storm. A girl that plays with spiders, doesn't care to get messy, and doesn't care about getting hurt, and many more. She carries a neather star, much like a Ninja star but when it's thrown it will come back. it's a different type of blade but y/n (Kagaya's next life) never liked keeping a blade that slowed her down so Y/N's father got her a Neather star, taught her how to use it. Now y/n (Kagaya's next life) is great with it, and it does really good damage.