After winning a trip to space at a sketchy festival raffle, Hana Kappa and his friends board a spaceship belonging to Apo and Sol—two aliens from a flowerless planet called Nahanaha. The aliens ask Hana Kappa to use his flower-blooming powers to save their world. As they journey across the galaxy, the group explores the solar system and learns about the constellations in this fun, educational planetarium adventure!
| Actor | Role |
|---|---|
 Rie NakagawaHana Kappa (voice) | Hana Kappa (voice) |
 Rumi ShishidoMomo Kappa (voice) | Momo Kappa (voice) |
 Tetsuya YanagiharaKarabaccho (voice) | Karabaccho (voice) |
 Cocoro KikuchiSugiru (voice) | Sugiru (voice) |
 Kappei YamaguchiGarizo (voice) | Garizo (voice) |
| MMako MorinoAgeru (voice) | Ageru (voice) |
 Megumi OzakiTsunenari (voice) | Tsunenari (voice) |