The Hidden Dungeon Only I Can Enter

A noble outcast gains reality‑bending powers that cost him his life—so he starts cashing in on kisses.

Born into aristocracy yet treated like a servant, Noir Stalgia clings to a bizarre gift: a telepathic link with the all‑knowing Great Sage, who can answer any question for a price. After a humiliating stint as a failed librarian, he enrolls in the Hero Academy, only to discover that raw talent alone won’t get him past the gate. The Sage directs him to a secret mountain dungeon, where he rescues Olivia Servant, a chained maiden who bestows upon him god‑like abilities that can rewrite reality itself. The catch? Every spell siphons Noir’s life force, forcing him to replenish his vigor through hedonistic shortcuts—kissing his childhood friend, indulging in pleasures, and other morally gray shortcuts. Armed with these perilous powers, Noir returns to the academy, where he quickly becomes a magnet for trouble and a reluctant hero for his classmates. Each episode balances over‑the‑top action, slap‑stick ecchi moments, and the uneasy tension of a harem‑driven narrative, as Noir learns that wielding omnipotence without a solid moral compass can be as deadly as any monster lurking in the hidden dungeon.

A fantasy harem where the hero's overpowered skills drain his life force unless he engages in escalating sexual activity with his growing circle of female companions. Expect near-constant fanservice, suggestive 'recharging' scenes, and light dungeon-crawling action wrapped in a wish-fulfillment power fantasy.