Ever since Arwin was summoned as a child, all he has known is war. And now, to claim the demon queen's life and end the war, he has to sacrifice himself. But, as he deals the final blow, the Hero of Mankind is betrayed. Caught in a magical explosion thought to end him, Arwin awakens a month later to find that everyone has already moved on. His [Hero] class has changed to a unique blacksmith Class called [The Living Forge] that is empowered by consuming magical items, but some of his old passive [Titles] remain, giving him the power to forge his new future exactly the way he wants to.

The usual result of a human taking a runaway semitruck head-on is a very sudden, very fast track to the pearly gates. But for one newly noncorporeal man, there's another option: become a dungeon. Feeling sorry for the desperate angel assigned to him, the man relents. Heck, if it doesn't work out, he can always chat with Saint Peter about it later. Next thing you know, he's a dungeon. Admittedly, a small run-down, somewhat unimpressive dungeon (more of a house, actually), but you gotta start somewhere, right?

It was a day like any other when suddenly the world changed. The universe reached a threshold humanity didn’t even know existed, and it was time to finally be integrated into the vast multiverse. A place where power is the only thing anyone can truly rely on.

Zaria was just a normal woman, living a simple life—until demons burst through her door and ate her heart. Reborn from tragedy, Zaria rises from the ashes as a Core, but with a twist. A rare mutation has turned her into a Mutant Core, destined to explode unless she forms a bond with a human witch to become a Striga. Her mutation? Legs. With the power of a full dungeon compressed into a walking house that is her body, Zaria sets out on a journey to find her Striga and avoid detonation. Along the way, she battles demons, builds her dungeon, and feeds her mimic mobs.

Don't miss the start of this LitRPG adventure about a reincarnated necromancer growing in power and finding his way in a new world where the rules have changed vastly since he last "lived".