Anime Crossover: I Became a Master in the Age of Yokai

A Hundred Demons Walk the Streets of Heian-kyo

Bai Fei transmigrates into an era of chaos, where demons run rampant, and awakens the Master System.

The System detects that you have slain an S-rank demon: Shuten Doji. Reward: King Arthur, Saber.

The System detects that you have defeated the Hyakumonogatari Group. Reward: King Hassan's Grand Servant state.

The System detects that you have defeated the onmyoji: Dark Seimei. Reward: Unlimited Blade Works.

The System detects that you have foiled Yamata no Orochi's plan to devour the world. Reward: Tiamat's Fallen God form.

The System detects that you have saved Hachiyo Bikuni from the Swamp of Yamata. Reward: Projection Circuits fully unlocked.

And so, he embarks on a path to grow stronger, slaughtering wicked demons and ferocious spirits while saving the world.

Driven by fate, he must face powerful demons from every era alongside the Heroic Spirits.

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