|Age|| 500 (True age)
Gaap first appears in episode twenty, and plays a rather minor role. Since then, she became a recurring character, and is set to help defeat Beatrice.
- Yuki: Friend.
- Her birthday is on April Fool's Day, which is a joke on how she's a prankster.
- In literature, Gaap is a goetic demon referenced in the Lesser Key of Solomon, Psuedomonarchia Daemonum, the Dictionnaire Infernal, and the Munich Manual of Demonic Magic, as a prince who incites love.
- In RP, Gaap says that she used to crossdress, and was into matchmaking, which is a nod to Gaap in literature.