Okutamastar (オクタマスター, Okutamasutā) is a planet located at thousand of light years from Earth. It's the home planet of Youko Asamiya. Nothing else is known about this planet.
| DGTO Empire | Lancastar • Kasumigastar • Baltistar (Vegastar) • Funghistar • Sagittariusstar • Tundrastar |
| Others | Akibastar • Kazakhstar • Eurostar • Uwarastar • Naniwastar • Sebustar • Bananastar • Maiamistar • Okutamastar • Nikkoustar • Summerstar • Saharastar • Atamistar |