Korasho no Kaitei Wakuwaku Daibouken! Movie
Genres: Adventure, Fantasy
Type: Movie, Episodes: 1
Aired: Feb 1, 2019
Studio: TMS Entertainment
Source: Other
Rating: PG - Children
Synopsis:
The character Korosho, a spirit of a randsell backpack, is from Benesse's "Shinken Zemi Shogaku Kouza" correspondence course for early elementary schoolers. The film is a collaboration with the Japan Agency for Marine-Earth Science and Technology (JAMSTEC) and Team Kuroshio, a team of researchers and engineers dedicated to studying the ocean floor. 

(Source: ANN)