Overview
While Kinnikuman is on vacation with Mari-san's kindergarten class at Easter Island, the young wheelchair-bound Kouichi-kun laments being with an idiot like Kinnikuman, preferring to instead be with his favorite Seigi Choujin Buffaloman. Meanwhile, the other Seigi Choujins are also vacationing at ancient landmarks.
| Actor | Age then | Age now | |
|---|---|---|---|
 | 38 | 78 | |
 | 44 | April 8, 2022 (81) | |
 | 49 | March 8, 2002 (66) | |
 | 24 | November 16, 2017 (57) | |
| 24 | 64 | |
| 24 | 64 |