Based on the true story of racing horse "Haru Urara" ("Gentle Spring"), who lost every single horse race she entered since her 1998 debut.
| Actor | Role |
|---|---|
 Tsunehiko WataseDai Muneishi | Dai Muneishi |
 Chikako KakuAyako Muneishi | Ayako Muneishi |
 Shugo OshinariKensuke Fujiwara | Kensuke Fujiwara |
 Saori HaraMika Muneishi | Mika Muneishi |
 Chisako HaraNot listed | Not listed |
 Ryosei TayamaNot listed | Not listed |
 Guts IshimatsuNot listed | Not listed |
 Noboru TakachiNot listed | Not listed |
 Daisuke ShimaNot listed | Not listed |
 Yōko TsukasaNarrator (voice) | Narrator (voice) |
| TTeru SatōNot listed | Not listed |
 Naoya MakotoNot listed | Not listed |
 Mie NanamoriNot listed | Not listed |
| YYûji SuzukiNot listed | Not listed |
| KKoji HashiguchiNot listed | Not listed |
 Tokie HidariNot listed | Not listed |
 Gin MaedaNot listed | Not listed |
 Naoto TakenakaHidekatsu Nakanishi | Hidekatsu Nakanishi |