~ The Divine Breathing ~ (Kokushibo x reader)

She is stronger than the demon King Muzan Kibutsuji and the strongest demon slayer Yoriichi Tsugikuni. She was born with infinite power and strength. She is grace like a divine. She is Y/n L/n.

Disclaimer: I did not own the Kimetsu No Yaiba characters. Original credit goes to Koyoharu Gotouge for creating Kimetsu No Yaiba/Demon Slayers