Tokyo: Slaying Demons and Exorcising Spirits with a Cursed Blade

[Swordsmanship] [Yin-Yang arts] [Night Parade of a Hundred Demons] [Not a saintly protagonist]

Amamiya Ren transmigrated to an island nation overrun by demons, where from the start he was the good-for-nothing heir of the Amamiya Dojo.

Fortunately, there was still a way forward: he awakened a strange demon blade.

Burning his lifespan could increase his strength.

Slaying demons could let him steal their lifespan.

Swordsmanship, shikigami, Yin-Yang arts, soul blades...

Every kind of power in the world could be exchanged for lifespan.

While others spent ten years training just to break through, he only needed to fight to grow stronger, feeding his blade with his life.

While others were stuck at bottlenecks and unable to advance, he had already forged a path to the heavens by piling on lifespan.

From then on, he slew demons, seized lifespans, and grew stronger.

Years later, the hundred demons bowed their heads, and even the gods gave way.