Dungeon Battle Royale ~ Since I became a Demon King, I will aim for World Domination - Chapter 215 – 216

In humanity’s final war against the Demon Lord, the strongest heroes fell—not by the enemy’s hand, but by their own, twisted into madness by a cruel illusion. Betrayal. Bloodshed. Despair… and then, silence.Only one person remained: Riley—the weakest warrior of them all. Powerless. Ignored. Forgotten.But he saw through the Demon Lord’s deception. The tyrant was on the brink of death—so weak even a fly could’ve finished him off.And Riley did just that, drawing every last ounce of strength to bite off the demon’s head.Victory? Not quite. A final, desperate strike from the Demon Lord pierced him from behind, killing him instantly.But fate wasn’t done with him yet.Riley awoke ten years in the past—when the online game [Apocalypse] was launched. Before demons descended. Before monsters overran the world.And this time, he wasn’t starting from nothing. He had a decade of experience—and a second chance.Even more shocking, he didn’t awaken his old D-rank Strength Boost talent. This time, he received something far more terrifying: an SSS-Rank Gluttony talent!He could now devour anything—monsters, items, talents, even traits—and gain their power.Ding![You have devoured: Iron Fang Wolf][Acquired: +4 Strength, +2 Agility, Skill: Bite (F-rank)][You have devoured: Goblin ShamanAcquired: +8 Intelligence, Skill: Mana Bolt (E-rank), Talent: Minor Spellcasting Efficiency][You have devoured: Flaming Salamander Drake][Acquired: +22 Endurance, Trait: Dragon’s Resilience, Skill: Flame Breath (C-rank)]Now, there is no demon, no god, no monster who will stand in his way. He will devour everything—and save the world.But the power of Gluttony was a double edged sword. If he wasn’t careful… he could be the one getting consumed.

He was an addict, a loser, a despicable human being.

Soul System Online...][Vengeful Spirit Detected]Zero was once a legend a warrior feared and respected across the land, an SSS-ranked hero at the peak of power. But even the strongest are not immune to betrayal. His so-called allies turned against him, casting him into oblivion. Now, he lingers as a vengeful spirit, unable to move on, his legend seemingly forgotten.But fate isn’t done with him yet.When a mysterious boy with the rare ability to see and communicate with spirits crosses his path, Zero sees a chance for revenge and maybe even redemption. Armed with the enigmatic Soul System, he will carve a new path, defying death itself.The world thinks it has seen the last of him. They couldn’t be more wrong.The SSS-Ranked Troublemaker has returned. And this time, nothing will stop him.

To correct the mistakes of his past, a young man is forced to narrow the space between science and witchcraft, as he ventures on a quest to save his world from complete destruction.