MTL - Shoujo Grand Summoning - ~ 1999 ended... let everything turn into memories...

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

Kai was a 17-year-old dropout. A NEET. A background character in real life with nothing to his name but bitterness, novels, and guilt. After his parents died, he gave up on the world. People were fake. Dreams were pointless. And that one novel he kept reading? He hated it especially the main character, June. Perfect, noble, always standing tall. Everything Kai wasn’t.Then, one night, a voice asked: “What if you did meet June?”He said yes, half-asleep and half-mocking.Now he’s trapped in the novel. Isikeid. But he’s not June. He’s not a hero. He’s not even in the main cast.He’s an extra in the background of a world he knows too well and he’s had enough of watching things play out the same way. This time, he’s going to change everything. Whether the world likes it or not.

Grayson is a poor college student, scavenging leftover food, betrayed by his girlfriend, and constantly looked down on by everyone around him. Little do they realize he’s actually the heir to the mightiest billionaire family. When the seal on Grayson’s fortune is lifted, he transforms into the ultimate second-generation rich kid. He only wants to keep a low profile, but fate just won’t let him!So you think I’m just a loser? Fine. I’ll quietly use my money to solve everything behind your backs. Then I’ll make you all choke on your own words, swallow every insult, and slap you hard in the face...（This is anovel full of twists, comebacksand face-slapping moments, witha tightly woven and engaging plot—definitely worth your time.If you enjoy my story, please support it by adding itto your favorites. Your encouragement is the driving force behind my continued creation of exciting contentI also promise there will be no disappointing ending—the storywill have a satisfying conclusion. As the author,I already have 1.5 million words in reserve and willupdate with at least three chapters daily on average.）