Ace is killed by gods and reborn as a dungeon core — but unlike every other dungeon in the world, he is a Chaos Core, able to resurrect adventurers after killing them and steal their power. Positioned at the battlefield between six elemental factions in a world thrown into instability by the disappearance of the seventh god, Chaos, Ace begins his ascent alongside Seth, the first human to enter his domain. The two grow in tandem: one as a dungeon, the other as his founder-adventurer.

Ace is a dungeon core with a chaotic, curious personality whose perspective drives the dungeon half of the story — quirky, powerful, and genuinely funny. Seth, his human counterpart, is a capable adventurer whose growth mirrors the dungeon's own ascent. Dual perspectives between dungeon and adventurer give the series a distinctive rhythm.

Across six books, the series escalates from local faction skirmishes to world-ending prophecy as Ace and Seth grow toward Platinum rank while fending off faction agents, ancient artifacts, and a mysterious global catastrophe tied to Chaos's disappearance. The series consistently balances dungeon-core mechanics with humor, action, and a genuine sense of escalating stakes as Ace develops ever-stranger monsters and Seth and his party vie for the attention of visiting Exalted Ones.