Pure Pure Pleiades

Pure Pure Pleiades (ぷれぷれぷれあです, Pure Pure Pureadesu) is an anime spin-off of the Overlord series. Pure Pure Pleiades first aired on August 4, 2015 to September 22, 2015. This was the first season of the spin-off series, totaling eight episodes, each three minutes long.

Pure Pure Pleiades 2 was aired alongside Overlord II on January 16, 2018 to April 3, 2018. The second season had a total of thirteen episodes, however the running time for each was one minute and a half.

Pure Pure Pleiades 3 was aired alongside Overlord III on July 10, 2018 to October 2, 2018. The third season had a total of thirteen episode, and like its predecessor the running time for each was one minute and a half.

Pure Pure Pleiades
Ainz accidentally uses the magic item Total Maniac on himself. The effects of the item restored his emotions and left him in a bewildered state. He tries to pretend that everything is fine. But then the battle maids, the Pleiades, have arrived before him and await to receive their next orders, buuut...!

Pure Pure Pleiades OVA
Unlike the main Pure Pure Pleiades series the first OVA is thirty minutes long, divided into six segments. Two subsequent OVAs were released as specials alongside Overlord II. Each were around thirteen minutes long. A fourth was released after Overlord III with a duration of ten minutes.

Pure Pure Pleiades 2
Ainz finds himself in another reality where he is the CEO of a company known as Nazarick. His comrades, NPCs are all his executives and employees.

Trivia

 * Albedo proposed the title of the show to be "Ai Ai Ainz-sama" (Love Love Ainz-sama).
 * Ainz said whatever he is thinking out loud a lot.
 * Solution's body shape didn't change even if she swallowed a human whole in the LN and the anime, while in this spin-off, she became bloated.