Ex-husband, Behave Yourself - Chapter 2

In the endless Universe is eight primordial laws. Each of the eight laws have been fused with a supreme expert, but unbeknownst to everyone, there is a ninth law in the universe. It tears open the Primordial Chaos and is beyond reach.

Three years ago, Yun Qing Yan fell into the Immortal Realm from the mortal realm. Three thousand years later, he became Divine Emperor Yun who shook the entire Immoral Realm. Breaking through the void and returning back to the mortal realm, Yun Qing Yan discovered that only three years’ time had passed here. “In the past, I did not possess the power to protect the people I hold dear. Now, I want the entire world to grovel at my feet.”

- Description from Novelupdates

An unexpected transmigration and upon opening her eyes, she encountered a sleazy man trying to take advantage. Considering Su Yu was the heir of medical studies, proficient in multiple martial arts. How could she endure such a great shame? Just as she was about to show some of her moves, someone heroically came to her rescue, though he was somewhat disabled, his good looks were undeniable.With nowhere else to go, Su Yu naturally had to offer herself in return. It was just a limp, and it happened to be her specialty.Watch how she heals her handsome husband and together with her family, happily engages in farming and grows wealthy...

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