What if Muzan had four children and the oldest was stronger than even him? Well, that's Kibutsuji Y/n for you. Disclaimer!! I do not own KNY or the characters, except Y/n and Mira. It belongs to Koyoharu Gotouge. The names Kiyoomi, Shoyo, and Natsu belong to the anime 'Haikyu', which is written by Haruichi Furudate. I was originally going to use them at a later time for future plot purposes, which, due to certain reasons, will no longer come into fruition. The pictures I use are also not mine, otherwise entitled. Status: DISCONTINUED This is my very first book, so please don't judge. ~ Mae May-Chan