- Crystalline: The big city. Home of the idol group Cosmos, as well as some of it's residents: Blossom, Miyu, Astra, Roxie, Lita, Luna, and Youko.
- Blissful Bay: A small town that resides next to the ocean. The people who live here are: Kairi and Marin (on her off time).
- Evergreen: A peaceful cottagecore village away from the big city. It's inhabitants are: Sophie, Umeko, and Hestia.
- Cosmos: A city-based group of 4 idols who represent the galaxy along with the four seasons. This group consists of: Celestia, Juniper, Anzu, Bianca and Marin.