MTL - I Am the Legendary BOSS - Chapter 639 Brother, are you selling it? (Four thousand words +)

In a world transformed by spiritual energy, Kent, an underdog with an F-rank physique, gains the mysterious SSS-Rank Cultivation System. With the ability to copy and combine powers, he begins his journey to rise from the bottom.By his side is Nima, his sharp-witted younger sister with a rare Soulbinding ability, making her a prodigy. Together, they navigate a world filled with evolving beasts, ancient ruins, and hidden dangers.As they uncover the mysteries of the Emerald Vein and face powerful factions like Nexus, Kent must master his fire-based abilities to protect his sister and rise to power.Can they survive the chaos and claim their destiny? Find out in *Infinite Ascension: My SSS-Rank Cultivation System Made Me Too OP in Modern World!*WSA 2025 Contest.

By the time I reached thirty, I hadn't managed to provide any of the happiness I wanted for my wife.I also still couldn't become the support my parents relied on.At this turning point in my fate, my income suddenly began to increase randomly.(A daily life tale in a wealthy family setting, featuring a single female lead and no harem.)

This novel is also known as Only I Level Up

10 years ago, after “the Gate” that connected the real world with the monster world opened, some of the ordinary, everyday people received the power to hunt monsters within the Gate. They are known as “Hunters”.

However, not all Hunters are powerful. My name is Sung Jin-Woo, an E-rank Hunter. I’m someone who has to risk his life in the lowliest of catacombs, the “World’s Weakest”.

Having no skills whatsoever to display, I barely earned the required money by fighting in low-leveled catacombs… at least until I found a hidden catacomb with the hardest difficulty within the D-rank catacombs!

In the end, as I was accepting death, I suddenly received a strange power, a quest log that only I could see, a secret to leveling up that only I know about! If I trained in accordance with my quests and hunted monsters, my level would rise.

Changing from the weakest Hunter to the strongest S-rank Hunter!

- Description from Novelupdates

Thirty-three classmates hold a reunion after graduating. Tensions soar and old friendships are tested, as a strange turn of events lead them to follow the path of the ancient gods.