Korasho no Kaitei Wakuwaku Daibouken! Movie

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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)