Quadruplets' Charm: The Tycoon's Hidden Heirs - Chapter 184 - Who is Threatening Whom

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

A mysterious teenager who had lost his past, awakened in Tianlong Continent. Mistaken as the Ye family’s Son, he used this identity to observe this chaotic world and to search for his past self, but only to find an inevitable and terrible fate, therefore he indignantly laughed at his destiny, and revealed his prowess to rule the lands under the heavens.

Since then, the air and the clouds moved with his hands, and even thunderstorms were subject to his palms! He, as the fairytale’s main character, had shocked the people of Tianlong Continent with his legendary prowess and intelligence, but the extent of his powers were still unknown.

- Description from novelupdates

This story is centered around the man named Yi Ji-Hyuk, who has spent 1000 years in a Medieval Western fantasy-like world before returning back to the modern-day Earth. When he returns, he finds that his home is facing monster threats, and that humans with superpowers have appeared to protect the innocent people of Earth.

The female soldier king traverses into a useless little girl, confronting the strongest ghost lord who is both salty and sweet.She is the first legendary female soldier king in history, who traversed and was actually sold by a scumbag!!Unable to cultivate, abandoned, and cursed for a hundred lives, without a good ending?She holds a book defying fate, enslaving the heavens, making the earth her servant. Whoever splashes dirty water on her, she boils it and splashes it back.Punching scumbags, kicking white lotuses, with the universe in her left hand and the world in her right, she counterattacks in one fell swoop, changing the winds and clouds.Behind her, a lazy voice calls out.“Stop right there. I've confirmed through the eyes, you are the woman this lord wants to flirt with.”