In DC/Young Justice with the Omnitrix/Ultimatrix and a Chat Group - Chapter 19: Ideals

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

In a hall that was supported by golden craving runes pillars, the surroundings were silent except for the heavy breathing of an injured white robe teen with green hair and blue eyes while holding a sword in his hand was kneeling on the floor. The blood covered his whole white robe in red.Many bodies lie on the floor around the green-haired teen, indicating how intense the battle was.Standing in front of the injured green-haired teen was a teen named Kaal with long jet-black hair and deep black eyes, with a handsome face with a dominating aura.By piercing the sword in the chest of the green-haired teen, Kaal said with a smirk on his face, “Finally, the dog died...”.Taking out the cursed soul orb, Kaal read the memory of the green-haired Raven.“HAHAHA HAHAHA, so that was his secret. a soul from another blue planet called Earth possessed the body of Raven...” Kaal said while laughing.Like a story of a novel on his planet. Raven must be the MC who might be destined to ascend to the height of the world, and I might be an arrogant young master-type Villain, whose role is to make the MC shine.

Long Chen traveled through the world of fantasy and became the head of the Long family.He obtained the most powerful family system.After years,When everyone was fighting for imperial weapons, every member of the Long family already had an imperial weapon!As all forces struggled to recruit geniuses, the Long family already had divine bodies, sacred bodies, Tao bodies, and children of destiny appearing frequently!With the gradual control of the worlds by the Long family, the immortal emperors and immortal kings emerged one after another and suppressed all worlds...

Jiang Bai woke up one day and found with shock that he had transmigrated to a parallel world that is similar to Earth. There, he was granted a cheat system to help him forge the path of a tyrant in this new world. He was now stuck in this parallel world body, the body of a weak and cowardly person. Join Jiang Bai as he rose to the top in this new world!

- Description from Novelupdates