Marvel: The Ultimate Superman - Chapter 20. Experiment Successful

A man was transported to Ancient China and eventually became a servant of a declining household without a male heir. He utilized his wits and modern knowledge to help the household and eventually become trapped in the sea of political turmoils of the period.

- Description from Novelupdates

We follow Anthony, a man forced to adapt to a world of dark fantasy that imposes itself on him with an unmistakable brutality. A place where shadow and violence reign supreme, where inequality is riven and the laws of nature are distorted. A world where every moment could be the last.What fate does this cruel universe hold for our protagonist? What hidden secrets do the powerful hide behind cold and inaccessible masks? And what alliances, betrayals or rivalries will be woven into this maelstrom of supernatural forces and unfathomable powers?To survive, Anthony will have to fight, evolve and face his own demons. For in this place, no matter the greatness of the beings that populate it, it is tenacity that dictates the law.

Dual cultivation and apocalypse—words that mix like oil and water. There's nothing charming about seducing feral women on the road.

However, when Kaze Lexicon, the emperor of the Immortal Plane, got transmigrated into the past, he refused to give up his debaucherous ways—apocalypse or otherwise.

Armed with the knowledge of the future and an encyclopedia of overpowered cultivation techniques, he immediately set forth to obtain resources and build a lavish settlement to live a comfortable life dual cultivating in the apocalypse.

However, while it's obscenely protected and powerful, he finds himself in another predicament. The cultivators farming humans for their war, and the desperate humans, become enemies far more dangerous than the zombies and monsters that afflict humanity.

Join Kaze as he rebuilds his reputation from a bullied weeb, obtains wealth, builds power, starts a faction, makes lemonade, trains his people, protects his past lovers, conquers settlements, and fights humans, monsters, and cultivators, all for the sake of two obscene goals: enjoying life and building an army of engineers to bring modern technology to the higher planes.