10 nen goshi no HikiNiito o Yamete Gaishutsushitara Jitaku goto Isekai ni Ten'ishiteta - Chapter 4, Part 4 Bulletin Board Yuuji, Reporting Encounter with the Adventurer and Receiving Orders

After self-sacrificing, Yuri transmigrates from an apocalyptic to an interstellar era, inhabiting a disabled girl's body. She enters a joint marriage with a similarly disabled SSS-tier alpha, gaining a share in an ore planet. Determined to help her husband regain leg function and reclaim his SSS-rank, their journey together unfolds.

Send a mayfly to the world, a drop in the vast ocean!

Ye Chen woke up and found that he had traveled to the Qing Dynasty. Looking at the father lying on the bed, and the mother doing laundry for the neighbor

I thought it was an ancient farming text.

But with the awakening of the system! Only to find that everything is not so simple.

In Xiling in the south, there are Tufuzi running around, there is a restaurant with the same name in the capital, and the Zhang family in the northeast…

In the ancient building

Zhang Family: What the hell are you, you didn’t exist in history!

Ye Chen: I exist to change history.

In the Tomb of King Lu

Wu Xie: Brother’s tattoo is so handsome! He must have some special story..

Fatty Wang on the other side: No! I think Ye Chen’s is more handsome, okay?

Wu Xie turned her head to look: Damn!

Until the combination of various abilities of Shan Hai Jing, he also detached and became an ancient god,

To understand the true meaning of this world.

- Description from novelbuddy

The day of marriage. Lifting the sedan chair to the door, he lightly lifted the sedan curtain, but he saw no newcomer, only a piece of paper pressed under a stone.

Looking at her flamboyant font, his thousand-year-old pupils faintly spurted out a few flames. good very good. On his perfect and impeccable face, there was a faint smile, not angry but smiling.

However, no one saw the hidden chill in that smile. That woman dared to run away from marriage, he would let her know the consequences of doing so.

- Description from novelbuddy

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