My original instinct was to make Earth of the future much more dystopian. But I started thinking about how few bright and sunny futures we ever see in pop culture, and realized that it was a chance to do something that reflected Miymi’s upbeat nature. So I ended thinking of the happy landscapes in classic 2D sidescrolling video games, specifically Super Mario World and Wonder Boy in Monster World. The space cruiser that Miyumi’s family owns is based on the Opa-Opa ship from Fantasy Zone.