Demon Slayer: The Strongest Hashira, Heir to the Sun and Moon Breathing Style

(Based on the original work. Some plot points and settings that overlap with the timeline have been adjusted. Please go easy on me~)

[Plot-focused + no System + ruthless and decisive + Demon Slayer fan fiction + Muzan basks in the sun]

After Yoriichi Tsugikuni died, one branch of his descendants changed their surname to Yichuan to escape Kokushibo’s pursuit, then left the world behind to seek refuge.

A hundred years passed, and the Yichuan clan had long since fallen into decline.

Fortunately, a clan member born with a Demon Slayer Mark came along: Yichuan Kongta.

Thanks to his extraordinary talent, Yichuan Kongta mastered both Sun Breathing Style and Moon Breathing Style, unleashing astonishing potential.

His clan saw hope in him, so...

Yichuan clan head: “The task of defeating Tsugikuni Michikatsu and bringing him back to the clan is all yours!”

Facing the many mountains on the road ahead, Yichuan Kongta thumped his chest solemnly. “Leave it to me. I’ll definitely mess it up! (Not a chance.)”