Return of the Former Hero - Chapter 2. Former hero ・ First contact

Her step-sister just died three months ago. Now, she insists on marrying Chu Lui, who is supposed to be her future brother-in-law, the mind behind the Chu Enterprise. The world is sure that she, the new bride-to-be, had caused her step-sister’s death in order to seduce him.

Reborn in the Naruto world, Shin Uzumaki finds himself in the doomed Land of Whirlpools. As a member of the Uzumaki Clan! Trapped in a world filled with war, betrayal, and unimaginable power, Shin’s survival seems impossible.. Until it isn’t!![Ding! Replication System Activated!][Daily Login Reward: Common Replication Card.]​​​​​​​[Newbie Gift: Perfect Sage Body—​​​​​​​Adamantine Sealing Chains​​​​​​​—​​​​​​​​​​​​​​Four Symbols Seal​​​​​​​]With the power to Copy any Ability—whether it’s the Kekkei Genkai or Rinnegan or Forbidden jutsu—Shin begins his journey to dominate the Ninja World. [First task: Save Kushina and prevent the destruction of the Uzumaki Clan.]

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

What did you say?Your mobile phones have eight-core processors? 6G of RAM? 256G of storage? Full charge in an hour and a half?Is that supposed to be impressive?Our mobile phones have sixteen-core processors, 12G of RAM, 1T of storage, and can be fully charged in just ten minutes!What did you say?Your power banks have a capacity of 30,000mAh? They feature bi-directional fast charging?Sorry to break it to you, but our power banks have a 100,000mAh capacity. As for bi-directional fast charging technology... our phones with 10,000mAh large battery capacity can be fully charged in just ten minutes. You want to talk about bi-directional fast charging technology?If others have superior products... I'll provide them at a better price... If others provide a better price... I'll just produce an even better product...Superior electronics, superior cars, superior construction...Ever since Lin Yun acquired the Cosmic Trading System, every industry has started to face fierce disruption...Money is only a minor concern, the real power lies in force!Do you say that Lin Yun's aim is to conquer Earth?No! No! No! You're mistaken, his aim is the universe itself!