I hate being in pain, so I think I'll make a full defense build - Chapter 19: Defense Specialized and Under Preparation

A guy became a brother of Iron man and got the ability to extract genes from anyone. Lets see how he changed the Marvel World

- Description from Novelupdates

Jin Yeong was just another office worker—forgettable, unremarkable, and stuck in a life that never went anywhere. He wasn’t strong. He wasn’t talented. In a world of ambition, he was just… there.Then, the sky cracked open.A voice echoed across the world, mocking humanity’s weakness. A system was given. A chance to survive.People awakened powerful abilities—fire, lightning, super strength. Jin got this:[Limitless Weapon Mastery]“Any weapon you wield is used at its maximum potential.”No fire. No magic. No enhancements. Just a simple skill?But soon he and the world will learn a simple truth:It’s not about what you wield. It’s about how you wield it.

Regret filled Valyr as he witnessed Earth before him crumble into nothingness. Although he and the others had done everything they could, their efforts were all for naught as they stood powerless to stop the inevitable, causing billions upon billions of innocent lives to perish in the cold and unwelcoming darkness of space.

Indignant at the outcome, Valyr asked the heavens above to give him a second chance, a chance wherein he would make sure the inevitable didn’t happen. Though he knew that the likelihood of it happening was slim to none, surprisingly…

The heavens answered.

Opening his eyes, he swiftly found out his wish had been granted, in more ways than one at that. Not only was he brought back to the time where everything had yet to unfold, he was also reborn as an NPC in the game where everything started and everything ended.

The True Immersion VRMMORPG, Greater Beyond.

Utilizing his newfound advantages, in conjunction with his knowledge of the game and its various versions from his previous life, Valyr was going to make sure that what happened before wouldn’t happen again. And all of that began…

With him picking up the Blacksmith class.