Ple Ple Pleiades × Kagejitsu!
Japanese title: ぷれぷれぷれあです × かげじつ！
Type: ONA
Episodes: 1
Source: Original
Genres: Comedy, Fantasy
Studios: Studio PuYUKAI
Duration: 10 min
Rating: PG-13 - Teens 13 or older

For some reason, Ainz and Shadow have swapped bodies! But... no one has noticed!? Even if the masters have swapped, there's no problem!

(Source: Official YouTube, translated)