Invincible in the Ninja World, Starting with Demon Slayer

I stand above the Nine Pillars, the Demon Slayer Corps' foremost warrior!

I have slain the Upper Moons, and no one can match my swordsmanship!

Muzan: I admire you. Become a demon, and together we'll become the ultimate life-form!

I grin, baring my fangs. Who says there can only be one Demon King?

You lousy boss, come out and enjoy the sunshine. How about a cup of wisteria tea?

After defeating Muzan, I turn my gaze toward the ninja world. Perhaps those five villages need a mayor!

P.S. This story will run for at least a million words. It's long and high-quality, so fellow fans, come on in!

This novel and its characters are entirely fictional. Any resemblance is purely coincidental. Do not imitate.