Monsters did not always exist in the island country of Hexaldoria, once known as Japan. But, once monsters appeared, their numbers grew in an instant. Eighty percent of the world is now too dangerous for people to live in. With the monsters' arrival, the world bestowed "Classes" upon its people. Classes are assigned at birth, and most people live according to them. There are eight competent classes: Fighter, Hunter, Cleric, Warrior, Mage, Merchant, Thief. And three special Oracle classes: King, Sage, Hero. The weakest Class of all is Villager. However, Kouji Kagami became "Level 999"--the highest level that no one had reached before. When he met the daughter of the Demon King, the world started to change! (Source: Kadokawa, edited)

In a world where humanity battles monsters with powerful weapons called Relics, Hinata Asahi is the ultimate underdog at Valkyria Academy, a school for training warriors. Mocked for his relic, a gimmicky suit that looks like a comic book costume, and bullied by classmates, no one knows it holds a secret. The more he is pushed down, the stronger it becomes. Driven by his father’s legacy, Hinata forges new friendships and pushes past every obstacle. With unwavering determination, can he rise to become one of the academy’s strongest? *Source: WEBTOONS*

In this world, the concept of 'levels' exists. Other than those who live off defeating monsters, most people are only around Level 1 to 5. What's more, not just anyone can go out to hunt monsters; it's heavily influenced by one's role appointed by God. There are eight such eligible roles: warriors, fighters, clerics, magicians, rogues, merchants, hunters and sorcerers. Those blessed with extraordinary power are divided into three types: royalty, heroes, and sages. But for the majority of the population, they have no such powers and live by farming or running shops. Towns are developed by those with the weakest role, villagers. For the powerless villagers going out to hunt monsters is equivalent to committing suicide. But one day, a certain two-year-old child given the role of villager notices something. Once you defeat a monster, you can earn great wealth.

The “Corruptors” are monsters born from the waste humanity spewed into the world, and their existence slowly eats away at the planet, driving mankind to the brink of annihilation. Humanity’s strongest agent, Jin Shidō, gains the power to save the world after enduring brutal human experimentation—but it comes too late; 99% of humanity has already perished. Pinning his hopes on the future, Jin chooses to enter a long sleep. One hundred million years later, on a newly reborn Earth, Jin awakens and smiles. “Looks like I was right to believe in it—the possibilities of the future.” [Original Webtoon](https://jp.piccoma.com/web/product/203849)