Marco, a young Italian boy, is searching for his mother across Latin America after her letters mysteriously stop arriving. On his travels Marco encounters people who care for him and help him along his way; however, he must also face the evils of the adults who care for nothing but themselves and decide to take advantage of his situation.
| Writing | Kazuo Fukazawa | Writer |
| Directing | Kozo Kusuba | Director |
| Visual Effects | Toshitsugu Saida | Animation Director |
| Visual Effects | Toshitsugu Saida | Key Animation |
| Visual Effects | Ken Shintani | Key Animation |
| Visual Effects | Kenji Kodama | Key Animation |
| Visual Effects | Hiroki Kawazoe | Key Animation |
| Visual Effects | Mitsuo Tano | Key Animation |
| Visual Effects | Kazuko Maejima | Key Animation |
| Visual Effects | Kenji Mizuhata | Key Animation |
| Visual Effects | Kazunobu Hoshi | Key Animation |
| Visual Effects | Yuuko Watabe | Key Animation |
| Visual Effects | Michiko Igarashi | Key Animation |
| Visual Effects | Shiro Kudaka | Key Animation |
| Visual Effects | Yuji Hamano | Key Animation |
| Visual Effects | Masahiro Kase | Key Animation |
| Visual Effects | Yukiyoshi Hane | Key Animation |
| Visual Effects | Junko Ikeda | Key Animation |
| Visual Effects | Tetsuya Ishikawa | Key Animation |
| Visual Effects | Yasuhiro Endou | Key Animation |
| Visual Effects | Takayo Nishimura | Key Animation |
| Visual Effects | Takao Ozone | Key Animation |
| Visual Effects | Toshio Mori | Key Animation |
| Visual Effects | Atsushi Irie | Key Animation |
| Visual Effects | Tsuyoshi Konakawa | Key Animation |
| Visual Effects | Jun Sekiguchi | Key Animation |
| Visual Effects | Satoru Iriyoshi | Key Animation |