Demons Run Amok: I Gain Lifespan by Slaying Them and Evolve Without Limit

[Decisive and Ruthless] [Lifespan Plundering] [Slaying Demons and Exorcising Evil] [Decisive and Ruthless]

In the Great Xia Dynasty, demons run rampant, cultivators hold sway, and officials collude with monsters.

Xu Xing transmigrates into the only son of a prominent family in Huangshu Town, only to witness his beautiful sister-in-law transform into a great demon and swallow his elder brother whole!

At the brink of life and death, he awakens a Deduction System.

As long as he feeds it demon cores, it can deduce his cultivation, techniques, and weapons by an equivalent number of years.

Feed it a ten-year demon core, and a technique instantly reaches perfection.

Feed it a hundred-year demon core, and his cultivation advances three levels.

Feed it a thousand-year demon core, and even a kitchen knife can become an ancient divine weapon.

Later, a demon slayer arrived from the Great Xia Demon-Slaying Bureau, a man whose very name struck fear into everyone.

He slays demons and exorcises evil, punishes the wicked and rewards the good. He has imperial authority to execute first and report later.

While others slay demons, Xu Xing slays cultivators along with them.

Every strike is a killing blow. Wherever he passes, he leaves nothing but corpses, ensuring no trouble remains.