is a Japanese light novel series written by Hirotsugu Ryusen and illustrated by Fuzichoco. It began serialization as a web novel published on the user-generated novel publishing website Shà Âsetsuka ni Narà  in April 2012. Micro Magazine later acquired the series, which began releasing it in print in June 2014 under their GC Novels imprint. Twenty-three volumes have been published as of December 2025. A manga adaptation by Dicca Suemitsu began serialization online via Micro Magazine's Comic Ride website in July 2016, which has been compiled into fourteen tankà Âbon volumes as of July 2025. Both the light novel and manga have been licensed in North America by Seven Seas Entertainment. An anime television series adaptation by Studio A-Cat aired from January to March 2022.
The series follows Sakimori Kagami, who has been playing the online video game Ark Earth Online for a long time as the character Danblf, an old male sorcerer who is one of the game's nine great sages. One day after adjusting his character, he is sucked into the game world, and finds himself inhabiting his character's body, who after his adjustments looks like a young woman; he tries to convince the people of the game world that he is Danblf's pupil while figuring out on how to turn himself back to normal and escape the game world.
The Nine Wise Men are the most powerful sorcerers serving the Arkite Kingdom. They are devoted to the absolute mastery of each specialty of the nine branches of Magic.
An anime television series adaptation was announced on May 27, 2020. The series is animated by Studio A-Cat and directed by Keitaro Motonaga, with Takamitsu KÃ Âno overseeing the series' scripts, Kumi Horii designing the characters, and Go Sakabe composing the series' music. It was initially scheduled to premiere in 2021, but it was later delayed. It aired from January 12 to March 30, 2022, on Tokyo MX and other networks. Funimation co-produced and streamed the series. The opening theme song is "Ready Set Go!!" by Asaka, while the ending theme song is "Ambitious" by Erabareshi. Muse Communication licensed the anime in South and Southeast Asia, and the series is available to watch on iQiyi.