The anime, demon slayer. A Rui x Reader oneshot book. All characters belong to their rightful owner, cover not mine.

Demon slayer fanfiction *For this story Rui appears as an older teen* I will try to update around once a week but ultimately it will update when I finish a chapter. Destined to destroy the 12 kisuki, you leave home at an early age to be trained by the mist Hashira. You are sent on a mission to the very mountain where your uncle was brutally murdered. You have visions that become more frequent the closer you get to the mountain, and you continue in fear of what is to come.

This is a platonic relationship since Rui is a child. The reader is just someone who is meant to care for him. And over time the reader just accepts it as their life, maybe even harboring some nurturing feelings towards him? We'll see how it goes.