Shittakaburi Kaitsuburi is a promotional anime produced for Shiga Prefecture to celebrate Lake Biwa. The Lake Biwa Otsu Prince Hotel introduced a mascot named Prince Nio, a combination of the hotel’s “Prince” branding and the nearby port of Nio. Prince Nio has appeared in a local news program, real‑estate advertisements, school sports cheering events, and other regional promotion campaigns managed by Biwako Broadcasting, with Fujigumi holding copyright on the mascot. The series also released a collection of family‑friendly sing‑along CDs and animated music‑video DVDs.