The Failed Knight in Demon Slayer

Someone who should have died transmigrates to a world full of man-eating demons and gets a System called Failed Knight?

Then let this scum of society make one last contribution in this world before fading away in obscurity.

Suddenly, two butterfly-like figures flashed through his mind.

Hmm...

Maybe not.

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