In a world teeming with dungeons, a transmigrator arrives with genuine player privileges. He rises above a multitude of unauthorized players and dungeon illegitimate users to become the ultimate calamity.

Unemployed youth Chu Yinzhou discovers that beneath his bed in his rented apartment lies a hidden entrance to another world: a dark dungeon fraught with danger and teeming with monsters. As a "Chosen One," he awakens a unique ability called the "Eye of Reason": he can see beyond the essence of things. He can see the descriptions of the value and power of weapons in his hands, the "pressure levels" hovering above his teammates' heads, and even glimpse the bizarre and complex inner thoughts of others. Armed with a bandit's knife and gun stolen from a coffin, Chu Yinzhou begins his struggle for survival in the dungeon. However, sometimes knowing everything is more agonizing than knowing nothing. He sees a resolute and upright paladin, whose radiant "Apostle of Light" heart hides a crimson brand of "kleptomania." The loot he just finished counting vanishes beside her in the blink of an eye...

This is a world where games and reality are completely intertwined. Warcraft roam freely, secret realms abound, and dungeons are countless. To survive, everyone undergoes a class change at the age of eighteen.

Lin Mo switched to the universally acknowledged useless class—Heavy Shield Guardian. He could only take hits, had no offensive capabilities, leveled up at a snail's pace, and was the eternal scapegoat in every team.

Despite being treated coldly and assigned the worst resources, Lin Mo remained calm.

Because he awakened the unique talents of [Absolute Conservation of Attack and Defense] and [Infinite Life Drain].

All defensive capabilities are converted into true damage in equal amounts.

Killing any monster permanently increases your maximum health.

"I don't need positioning, I don't need skills, and I don't need teammates."

Lin Mo raised the giant shield, which was as tall as a man, and looked at the roaring beast in front of him.

...

Before the Grand Imperial City of Sol, the Southern Duchy's regal princess, Inanna Augusta, renowned for her iron-fisted ways, gritted her teeth as she clutched the shreds of her dress that barely covered her vitals, revealing the shattered silver armor beneath, creating a startling scene. She gazed at the screaming, wielding weapons of goblins, orcs, dark elves, barbarians, and imps... and pleaded, "Warriors, why have you come to this?" "Waaaaaaaaaa!!" "The Blue Heaven is dead, the Yellow Heaven reigns!" "The world belongs to the Wings of the Abyss!" "The Abyss nobility reigns!" "Damn it, who touched my ass?" Then, a gust of black wings covered the sky. Levis, the Wings of the Abyss, the last true dragon lord, protector of the abyss, driver of the cancer of the world, the sinful black dragon, said helplessly, "When did I ever say I would conquer the world?"