Death March kara Hajimaru Isekai Kyusoukyoku (WN) - Volume 17 Chapter 36

The first time Yan Zhaoge crossed worlds, he landed in a martial warrior civilization that was at the peak of prosperity. He ended up in the book storage building of the the Divine Palace, which collected and preserved the classics of the entire world from all fields of knowledge. However, a world class calamity struck soon after and even the Divine Palace was destroyed.

Yan Zhaoge’s soul once again crossed over, but this time he arrived in the same world, except countless years have passed.

With his brain full of rare books and classics from the era of peak prosperity, Yan Zhaoge’s second crossing over to the present era was like a gamer who was used to playing hell mode suddenly finding himself playing the game on easy.

That was just way too awesome.

But before that, he needs to fix a certain problem.

“I’m not a main character? In fact, I’m actually the main character’s love rival and the antagonistic Mr. Perfect senior martial brother? This script is wrong!”

- Description from novelupdates

I was nothing. A lowly omega, destined to live in the shadows of stronger wolves. But on the night of my eighteenth birthday, the moon had other plans for me. My mate was an Alpha’s son. The problem? He wasn’t the only one. The Blackwood triplets—Kael, Ronan, and Darian—each bore the same mark that bound them to me.To be Luna, I would have to survive the chaos of three powerful mates, a jealous rival who wanted my place, and a secret buried deep in my bloodline.Because being chosen by the moon was never a gift. It was a curse.

A seemingly ordinary training exercise led Chen Jian and his squad into a completely different time and space.In the post-apocalyptic world, monsters run rampant, and the surviving humans struggle to live under their terrifying claws.To fight the monsters, the living have abandoned everything.Human nature no longer exists; beastliness is the mainstream.To defeat them, one must first become them.-----------------Chen Jian was supposed to be like the others here, pursuing the maddening evolution.But, when the tungsten-core armor-piercing round first penetrated the Kui Niu's keratin armor, he suddenly discovered...Perhaps there is another way to stay alive?

Mu Mu transmigrated in the novel that had the plot like a fraud marriage with a man dressed in women’s clothing, rich man regretting and taking revenge after rebirth.

The body he had transmigrated into was none other than that of a scumbag who was a fraud man dressed in women’s clothing. He was also the one that the protagonist took revenge against.

And now, he was standing at the door of the Civil Affairs Bureau with that damn protagonist, holding the newly-released marriage certificate in his hand.

Mu Mu agitatedly raised his head. He saw the fierce and sinister expression on that damn protagonist. He was twitching the corners of his mouth, showing a grim smirk of wishing to eat his blood and flesh.

Mu Mu’s legs were weak and his eyes turned dark. He was trembling: “My good brother, why don’t we get a divorce?”

- Description from Novelupdates