The story centers on a crocodile living a normal life, unaware that he is due to die in 100 days. The crocodile spends ordinary days with his animal companions.
| Actor | Role |
|---|---|
 Ryunosuke KamikiWani (voice) | Wani (voice) |
 Tomoya NakamuraNezumi (voice) | Nezumi (voice) |
 Subaru KimuraMogura (voice) | Mogura (voice) |
 Yuko ArakiSenpai (voice) | Senpai (voice) |
 First Summer UikaInu (voice) | Inu (voice) |
 Kurumi ShimizuBaito-chan (voice) | Baito-chan (voice) |
 Kaito SakuraiNot listed | Not listed |
 Nobue IketaniWani’s Mother (voice) | Wani’s Mother (voice) |
 Tomokazu SugitaWani’s Father (voice) | Wani’s Father (voice) |
 Yuki YamadaKaeru (voice) | Kaeru (voice) |