Overview
Aging zoo keeper Nishiyama Toshio acquires two young trainees: short-tempered former chef Takeshi Ishizawa and gentle vet Ichiro Hasegawa. Both are surprised by the difficulties they face in a deceptively easy job but persevere through troubles such as an escaped pelican, a dying camel, and the birth of a hippo.
| Actor | Age then | Age now | |
|---|---|---|---|
 | 39 | March 26, 2019 (77) | |
 | 45 | May 20, 2024 (88) | |
 | - | - | |
 | 49 | December 3, 2021 (90) | |
 | 37 | 81 | |
 | 35 | May 15, 1989 (43) | |
 | 35 | 79 | |
 | 49 | August 1, 2022 (90) | |
 | 51 | September 10, 1993 (63) | |
 | 23 | 67 |