Dancing in the Night (Kochou Shinobu x M! Reader)
-God said that our encounter is a fate. Then, I'd like to say that our feelings to each other also a part of our fate- (y/n) finally take a stronger seat. He finally become a part of the strongest swordman in Demon Slayer corps. He finally become a pillar. One day, while do the mission, he meet with two siblings, both...