The film follows the last 4 years life of Grandma Hashima, the last existent from colonial Taiwan, who knows the secrets of "Green Jail," the notorious coal mine before World War II on Iriomote Island, Okinawa, Japan.
| Crew | Shungo Nakatani | Cinematography |
| Editing | Valérie Pico | Editor |
| Editing | Mon-cher Ho | Editor |
| Sound | Thomas Foguenne | Music |
| Directing | Yin-Yu Huang | Director |
| Editing | Yin-Yu Huang | Editor |
