MTL - Taoist Doctor - Chapter 36

Unhindered in the Demon Domain, the king is solitary!

In the world where immortals and demons strive, a good natured fellow sought the Demon Dao in search of justice.

At the end of his journey, he had eventually become this generation’s Heavenly Demon Emperor.

Although I am not fond of slaughter, I do not dislike it!

Desiring to see the Demon World, this is how I strive, this is how I become the Peerless Demonic Lord!

- Description from Novelupdates

Feng Xia transmigrated to a fantasy world. This was the era when spiritual auras were exhausted, various scriptures were lost, and all cultivation techniques failed to aid the cultivators in improving. Feng Xia discovered that he had a superpower of attributes, but something seemed off.

He killed a Black Jade Spider by stepping on it. [Spider Maiden x1] dropped.

He defeated a strong opponent that qualified as a Great Emperor. [Teenage Great Emperor x1] dropped.

He was in a fight with a goddess for three days and three nights. [Mysterious Young Girl x1] dropped.

“Daddy,” a young girl greeted him in a sweet voice. Feng Xia was struck dumb.

Perhaps it is the choice of fate. As a senior otaku, Qian Lingfeng got the “steel shell system”. However, when he swept the world with the system, became a local rich man, made all kinds of beautiful women, opened a harem, and realized the ultimate fantasy of thousands of otaku, he found that things seemed far from simple!
When the end comes, biochemical zombies suddenly come down, fierce beasts are in power, bloodthirsty zerg roam to kill the world, and human lives are comparable to dirt. Where will weak human beings go in this world? Is humanity going to be extinct? Or … can an otaku save the fate of the human race?

- Description from Novelupdates