This Japanese Monogatari Isn't Lame - Chapter 14 - . Magong Tong’s Bad Luck (Please Collect!)

In her previous lifetime, they had married for five years. He meant everything to her, but she was thrown away like an old shoe.

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

Claimed to be the greatest team in the history of the card film industry — “Mu Lei” is born. With even the elites of the academic world unable to decipher these cards’ structure, his powerful cards were able to unnerve even the federation, causing the greatest Card Creators and Card Fighters to grow frantic, triggering open battles and covert maneuvers among various interest groups — all behind the silhouette of Chen Mu. Although he was not the originator of the federation’s unrest, he was definitely the number one reason for continuously escalating it.

He is a legendary business powerhouse, a King with a business empire. She is just an ordinary female student. A deal, – a paper marriage, a marriage for four years. Four years later, she turned away fearlessly. She thought that their path would never cross again, but he took her in his stride and refused to let go of everything about her, even interfering with her getting close to other men!

“Luo Yibei, we’ve already divorced! We’re finished! Over!”

“Yeah?”

She had to ask what he meant.

And he shoved a small bun in her bosom with a look of disapproval.

- Description from Novelupdates