The title includes 29 detailed animated sequences that play during specific gameplay interactions.

The narrative premise is deceptively simple: escape the realm by finding a way back to the human world. However, the environment is labyrinthine, populated by over 30 distinct succubi types, each with unique methods of hunting, trapping, and draining the player. The “lost” element of the title is literal; there is no mini-map, and landmarks are deliberately obscured, forcing the player into a desperate cycle of exploration and retreat.

The comedy often subverts expectations, with absurdist moments (a succubus trying to master Japanese pop culture, another obsessed with 2000s K-pop boy bands) juxtaposed against brutal violence. The humor never dilutes the horror—a balance reminiscent of Devilman Crybaby —but rather deepens the unease, forcing audiences to laugh at humanity’s darkest tendencies.