Sepia is a Squiddian who lives on an island in the middle of the ocean, which she and her fellow Squiddians call "Inkwell Island". The island is home to a variety of anthropomorphic animals and four races, including the Squiddians, Beastmen, Bunnarians, and Humans. The island was once also home to the Harpies, an advanced race that was wiped out after a calamity.