The Guide to Conquering Earthlings - Chapter 27: 0

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

Framed by her family, she had an accident, and found herself pregnant!Five years later, she came back strong, determined to crush those who wronged her and reclaim her child!Her genius son paves the way, swiftly bringing her to the top of the food chain, with influential figures bowing to her!But she never expected that the autistic little girl she unexpectedly met would bring her a troublesome big boss!Before marriage, he holds the little genius's hand, declaring, “Buy a kid, get a dad for free, no deception, unrivaled in punishing scumbags!”After marriage, he kneels on durians with the child, saying, “Sweetie, I'm sorry, our hidden identities have been all exposed...”

The Student Council President’s Secret Laid Bare (生徒会長のセキ裸ラな秘密) is fairly standard 2D Dream Bunko fare but with an exhibitionism theme.

Basically, it’s about a guy who discovers the student council president is an exhibitionist and gets roped into helping her with that fetish.

Heath transmigrated to an alternate dimension and awakened the [God-like Extraction System]. With the help of the system, he steadily walked the path of the Witcher to become a god.