A young Italian boy named Marco is devastated when his mother must leave home to work in Argentina to pay off the family debt. She sends the family letters, but soon the messages stop coming, which worries Marco and sets him off on an epic quest to find her.
| Actor | Role |
|---|---|
 Yoshiko MatsuoMarco (voice) | Marco (voice) |
| YYukiko NikaidoAnna, Marco's Mother (voice) | Anna, Marco's Mother (voice) |
 Kiyoshi KawakuboMarco's Father (voice) | Marco's Father (voice) |
 Mieko NobusawaFiorina (voice) | Fiorina (voice) |