Overlord: The Undead Oh! Chapter 37

'''Completely! Halloween''' (なりきれ! 逆ハロウィン) is the thirty-seventh chapter of the Overlord: The Undead Oh! series.

Summary
Ainz Ooal Gown is greeted by the sensual appearance of Albedo clad in only an apron asking if he wants a "trick or teat". Ainz ignores the gag much to Albedo's shock as he resumes working to talk about Momon's latest activities. The lack of reaction infuriates the Overseer Guardian. Ainz remembering her quote on "trick or treat" asks if she was doing it for Halloween, but Albedo is not familiar with the term. She wonders if perhaps she did something wrong when she said it, but that is not the case as Ainz explains that Halloween is a festival. The Overlord tries to think of how to explain the holiday, but even his knowledge is limited knowing that it a holiday that originated from Europe and has something to do with pumpkin harvests. He does know that the spirits and monster have a heavy influence, though for Japan there seems to be some relation to the Obon Festival.

Ainz comes up with an answer that it is a festival for costumes and sweets. Albedo wonders if the outfit that she wore counted as being in the Halloween spirit as she was dressed as a "house wife". The Overlord provides her with more information telling her that Halloween is a celebration created by humans who wear costumes of beings that they fear, such as ghosts, devils, vampires, zombies and skeletons. Taking that into account every day in the Great Tomb of Nazarick is Halloween as its full of monsters just like what he described. Anyway, people wear costumes and come together and party which Albedo think is fun. Ainz suggests that they host one themselves if they want to experience a Halloween. Albedo is happy at the suggestion, though wonders what kind of costume should they wear? As there are not any beings the denizens of the tomb feel afraid of save for Ainz. Seeing that bumping into multiple people that look like him would be a problem, Ainz reiterates that the costumes should be unique. They should try to be as creative as possible and tells her that the holiday according to his friends was started because humans wished to blend in with monsters to avoid being caught. Later in the Throne Room, Albedo announces the upcoming Halloween Festival, calling it an audition to practice infiltrating human society.

On the day of the festival, Ainz wearing his Mask of Envy is greeted by the "trick or treat" calls of Aura Bella Fiora and Mare Bello Fiore dressed as humans, by hiding their ears, and in mountain folk clothes. The magic caster is surprised when they offer him candy, as they are doing the reverse. They guide Ainz to the party venue, where it seems everyone is dressed like a human. A few however cannot successfully disguise themselves like Cocytus. However he and CZ2I28 Delta teamed, with the automaton pretending to be an adventurer while Cocytus is her golem servant in order to blend in human society. Ainz is impressed with the idea the two had come up with. Shalltear Bloodfallen calls her master out showing her set costume, being a patient on a medical bed with a Vampire Bride dressed as a nurse.

Character Appearances

 * Khajiit Dale Badantel
 * Clementine
 * Ainz Ooal Gown
 * Albedo
 * Aura Bella Fiora
 * Mare Bello Fiore
 * Cocytus
 * CZ2I28 Delta
 * Shalltear Bloodfallen
 * Yuri Alpha
 * Demiurge
 * Narberal Gamma
 * Solution Epsilon
 * Sebas Tian
 * Victim

Known Locations

 * Great Tomb of Nazarick
 * Throne Room

Chapter Notes

 * This chapter first appears in the Monthly Comp Ace May 2020 Issue.