Ano Yama ni Noborou yo
English title: Rainbow Mountain
Japanese title: あの山に登ろうよ
Type: OVA
Source: Unknown
Episodes: 1
Status: Finished Airing
Aired: 2003
Duration: 30 min
Rating: PG - Children
Studios: Toei Animation
Producers: Shinano Kikaku
Genres: Adventure, Fantasy
Demographics: Kids

Three friends find themselves on an adventure to Rainbow Mountain, a magical place where the first rainbow is said to have been created. However, getting to the top of the mountain requires courage and perseverance in the face of many challenges.