Delicious Island's Mr. U

A two part manga written by Akira Toriyama. The first part is titled "Ū-sama from the drinkable island" and the second part is "Why the inhabitants of planet Tech-Tech want Guruguru island". This twenty-four-page manga was made for a brochure in 2030 Magazine Saishū Senryaku Biosphere, to introduce children to environmentalist issues.