Immortality begins with Becoming an Alchemy Grandmaster - Chapter 509 - 218: Xuanhuo Sword, Repeated

With the Legendary Mechanic System, I transmigrated to Marvel Universe to be Dr. Zola’s assistant.

With Mechanical Force Analysis, I can learn every black technology.

Winter Soldier’s arm? I built a better one for you.

Iron Man’s armor? I already made it a decade earlier.

Doc Ock’s tentacles? I am the one who provided core technology.

Hulk’s mutation? Sorry, I was there and got hit by the radiation too.

As for a certain purple potato, can he collect all Infinity Stones?

……

However, I only had one simple ultimate dream. That is to go home…

- Description from Novelupdates

Rael screwed up badly. One reckless gamble later, and his guild's entire emergency fund was gone. With debt collectors ready to harvest his organs, his only hope was a single, desperate gacha pull.Ding![Congratulations! Player: Quarterpounder69 has obtained the (Divine) Grade item, Eye of the Beast!][Divine Grade item obtained! All Stats +250][First Divine Grade item obtained! All Stats +100][New title unlocked! [Heavenly Attraction] (Divine)]With no other choice, he consumed the item—only to be thrown into a situation no player had ever faced before.[To ensure fairness, please select a random number. This will determine which boss monster variation you become.]'Uh, I don't fucking know? 69... hmm, maybe not...'[Confirmed.]'Wait—'[Congratulations! You've chosen the Special-Type Boss Monster Variation: The Pay-to-Win Boss.][Congratulations! You've become a Boss Monster!]Armed with broken perks like [Premium Leveling], [Premium Evolution], and [Premium Shop], Rael was thrust into the world of the VRMMORPG game he had been playing.The issue was, he went back in time, specifically, 150 days before the launch of version 1.0.

He was an addict, a loser, a despicable human being.

Rhodes accidentally tripped and fell while playing with his phone as he walked down the stairs, only to find himself transported to the world of Fairy Tail.To his surprise, he discovered that he had the ability to summon various wild monsters from League of Legends and even learned how to use Receive Magic.But that wasn’t the main issue. The real problem was that, among a guild full of reckless individuals, there was suddenly someone who actually liked making plans.Some people believed he was destined to become the next guild master.But Rhodes knew the truth—becoming the guild master of Fairy Tail meant endless self-reflections and a never-ending pile of compensation bills.Determined, Rhodes made up his mind: I don’t want to be the guild master!