Oshiri Tantei Movie 3: Sufure-tou no Himitsu
Japanese title: 映画おしりたんてい スフーレ島のひみつ
Alternative titles: Butt Detective Movie 3: The Secret of Souffle Island
Type: Movie
Source: Picture book
Episodes: 1
Status: Finished Airing
Aired: Aug 13, 2021
Duration: 38 min
Rating: PG - Children
Studios: Toei Animation
Genres: Comedy, Fantasy, Mystery
Demographics: Kids

The story follows Butt Detective and his assistant Brown as they solve a difficult case on Souffle Island, where people ride the wind and fly in the sky.

(Source: Comic Natalie, translated)