Polish!! The Old Mechanic of the Institute

Synopsis

Hayato, Akita, and Tsuranuki are helping out with Shinkalion maintenance. Walking by is Odawara Kintoki, a stubborn, sharp-tongued elderly worker. Stuck doing the thankless job of refurbishing Shinkalion scrap parts, Kintoki sees through Hayato and the others' driving habits just by looking at their machines. Wanting to pilot the Shinkalion better, Hayato asks for advice—and Kintoki gives him a task: to re-polish, one by one, the huge pile of "junk" parts he's collected.