All the characters are based on game consoles and game companies. Neptune/Purple Heart and Plutia/Iris Heart are based on Sega, Neptune sharing her namesake for the unrealized Sega Neptune Plutia likely being a play on Sega's history of using the names of planets. Vert/Green Heart is based on Microsoft and the Xbox 360. Blanc/White Heart is based on Nintendo and the Wii, Noire is based on Sony and the PlayStation 3. Compa and IF are based on the two producers and publishers of the Neptunia franchise, Idea Factory and Compile Heart. Nep Gear, Uni, Ram and Rom are personifications of handheld devices from Sega, Sony and Nintendo respectively.