A succubus who can't seduce anyone is stuck doing the actual work of being a demon. The comedy isn't in what she does, it's in how completely unbothered she is about failing at her job. One episode of pure deadpan that knows exactly how funny it is to watch someone this fundamentally uninterested in their own supernatural premise.
Memumemu is a succubus with a problem: she's terrible at her job. She has come to the human world to seduce men and take their souls, but she has neither the drive nor the skill to pull it off, and she is not especially lewd either. One day she turns up in front of Hyouta, a high school student, and her presence leads people to mistake him for a lolicon. Also in the cast are the alluring mother and daughter who run the apartment building where Hyouta lives. Based on a gag manga by Yotsuya Keitarou, this single ONA episode plays her failed soul harvesting for light, only mildly risque comedy.