I Am the Peerless Swordmaster, Muzan's Number One Demon

Su Yi transmigrates into a world that blends multiple anime universes and obtains the "Peerless Swordmaster" System.

He can keep evolving as long as he hunts evil supernatural beings.

Ding! Slay a Parasite, and receive one physical enhancement.

Ding! Slay an SSS-rank Ghoul, and receive Observation Haki.

Ding! Slay Upper Rank Three, Akaza, and receive Armament Haki.

Ding! Slay a Special Grade Cursed Spirit…

Parasites, Ghouls, the Twelve Kizuki, terrifying Cursed Spirits, vampires, and more tremble beneath Su Yi's blade.

Takatsuki Sen: "Don't kill me. I'll do anything you ask!"

Kibutsuji Muzan: "I thought Tsugikuni Yoriichi was the only one who could threaten me. I never expected to run into this demon."

Jogo: "You cut right through my Domain, Coffin of the Iron Mountain, with a single strike! What kind of monster are you?"

Su Yi puts on a clown mask. "I am the Peerless Swordmaster, a god of slaughter in the dead of night…"

This novel and its characters are entirely fictional. Any resemblance to real people or events is purely coincidental. Do not imitate.