Leo expected his life to end somewhere between a memory foam mattress and a perfect cup of coffee. Instead, he wakes up as the Dungeon Boss of a miserable underground crypt, and the system immediately starts counting down to his dissolution.

His only chance to survive is to make the dungeon comfortable enough to keep its core alive. His last hope for backup is Amos—a disgraced knight sent to slay him, bound by a quest that should make cooperation impossible. But the deeper they dig into the Sunken Crypt, the clearer the truth becomes: the crown is lying, the prince is dangerous, and the dungeon itself seems to reward every scrap of tenderness they build inside it.

Then the siege begins. Comfort becomes fortification. Intimacy becomes power. And Leo must answer the one question the system keeps refusing to answer for him: if the only way home costs Amos his life, what is home worth?