One hot summer day a little girl gets lost in an enchanted forest of the mountain god where spirits reside. A young boy appears before her, but she cannot touch him for fear of making him disappear. And so a wondrous adventure awaits...
| Actor | Role |
|---|---|
 Izumi SawadaHotaru's Mother (voice) | Hotaru's Mother (voice) |
 Hayato TayaRyouta (voice) | Ryouta (voice) |
 Ayane SakuraHotaru Takegawa (voice) | Hotaru Takegawa (voice) |
 Koki UchiyamaGin (voice) | Gin (voice) |
 Shinpachi TsujiHotaru's Grandfather (voice) | Hotaru's Grandfather (voice) |
 Kanehira YamamotoShadow (voice) | Shadow (voice) |
 Masanori MachidaTree Hand (voice) | Tree Hand (voice) |
 Mami UchidaMasked Child (voice) | Masked Child (voice) |
 Hiroki GotoLion (voice) | Lion (voice) |
| KKumiko TashiroFestival Child (voice) | Festival Child (voice) |
 Asami ImaiMasked Child (voice) | Masked Child (voice) |