Na Min Chae

When I opened my eyes, I thought it was going to be the common cliché of 'Transmigrating into a webnovel's world as the main character', but this story hadn't been written. The life of the main character Lee Hwan, the setting, the other characters. None of it! God—the author—told me, "My style of writing webnovels is going to be very different from how your people do it." Wait a second! This is way too different!!!

In a world crawling with monsters and dungeons, Na Sunhoo and the other Awakeneds fight to protect humanity. But after he is killed in a deadly battle, a screen appears. \[Initiate Time Regression?] Now with a second chance at life, Sunhoo returns to the past, determined to make as much money as possible to buy the land the dungeon is on and destroy it before the monsters can appear. With innocent lives at risk, can Sunhoo strike it rich and vanquish the monsters once and for all?

\[Would you like to reverse time? All stats will be reset] \[Please pick a date.]"February 28th, 1985. The day I was born."Wealth, I will seize all the money in the world. Monopoly, I will seize all the dungeons in the world.At this time, while the world is still peaceful.Original Webtoon 

Based on the novel of the same name. A boy lives two lives: a young leader in a magical world and a high-schooler in reality. And he’s determined to live in both! Dive into this action-packed martial art fusion comic! (Summary from Korean Webtoons Wikia)