The anime project began streaming a series of web anime shorts last May.
The web anime is streaming on Toei Animation’s YouTube channel and the YouTube KIDS app.
A flyer from Toei Animation’s booth at the AnimeJapan 2018 event revealed on Thursday that the Oshiri Tantei (Butt Detective) television anime will premiere on May 3 on NHK E Tele (NHK Educational TV).
The web anime’s cast also includes Reika Uyama (Ronja the Robber’s Daughter’s Birk) as Suzu-san and Gaku Kudō as Būtarō.