Adapted from the video game series of the same name, NiNoKuni follows high school peers Yuu and Haru who must travel between two separate yet parallel worlds to help save their childhood friend, Kotona, whose life is in danger. In this magical quest complicated by love, the three teens will be tasked with making the ultimate choice.
| Actor | Role |
|---|---|
 Kento YamazakiYuu (voice) | Yuu (voice) |
 MackenyuHaru (voice) | Haru (voice) |
 Mei NaganoAsha / Kotona (voice) | Asha / Kotona (voice) |
 Koichi YamaderaBalton (voice) | Balton (voice) |
 Yuki KajiDanpa (voice) | Danpa (voice) |
 Masatô IbuFlander-ou (voice) | Flander-ou (voice) |
 Kenjiro TsudaGabalas (voice) | Gabalas (voice) |
 Tsuyoshi MuroOjiisan (voice) | Ojiisan (voice) |
 Maaya SakamotoSaki / Versa (voice) | Saki / Versa (voice) |
 Mamoru MiyanoYoki (voice) | Yoki (voice) |
 Madison RojasYoung Yu (English version voice) | Young Yu (English version voice) |