This fantasy anime follows Noir Stardia, whose rare skill allows him to create, edit, and access a secret dungeon filled with powerful monsters and treasures, but requires him to consume strong desires to gain points.

The fantasy anime described, featuring a protagonist named Noir Stardia with a unique ability to manage a secret dungeon filled with formidable challenges and valuable rewards, and who must satisfy strong desires to fuel his powers, is indeed The Hidden Dungeon Only I Can Enter (Review). This series centers on Noir, the third son of a minor noble family, who discovers a legendary hidden dungeon. This dungeon becomes his training ground, a place where he can grow strong in secret.

The core of Noir's journey revolves around the extraordinary skills he gains within this dungeon, particularly from the legendary adventurer Olivia Servant, who becomes his master. These abilities allow him to create, edit, and even bestow skills upon himself and others. However, these powerful skills come at a unique cost: they consume "Life Points" (LP). To replenish these points, Noir must engage in activities that fulfill strong desires, ranging from enjoying delicious food to accumulating wealth or engaging in affectionate interactions with others. This distinctive mechanic is central to the anime's plot and character development.

Originally a Japanese web novel, "The Hidden Dungeon Only I Can Enter" quickly gained popularity, leading to a light novel series, a manga adaptation, and eventually an anime television series that aired from January to March 2021. The narrative follows Noir's transformation from a low-ranking noble struggling for employment to a powerful adventurer, all while keeping his secret dungeon and its unusual requirements hidden from the world. The series blends elements of fantasy, adventure, and comedy, often exploring the protagonist's relationships as he navigates his newfound abilities and the demands of the hidden dungeon.