An adaptation of the picture book Harinezumi no Luchika.

The energetic Tapio Chatarozawa and the cool-headed Kuehiko Roshihara are two young cats trying out various part-time jobs. From delivering packages to washing windows on skyscrapers, the pair explore the opportunities that await them out on the recruiting field. As they struggle to learn the ropes, the duo endures the antics of their colorful customers and supervisors while bonding as working buddies.

For the regular cells of the human body, life consists of countless repetitive tasks. They spend every day multiplying, leaving little time for other activities. But one day, this monotony is abruptly interrupted by a cell with an odd-looking hat. Tired of unending drudgery, another cell named Ippan Saibou decides to join this quirky stranger for a day of pranks, jokes, and mischief.

Second season of Hataraku Oniisan!. Calico Tapio Chatorazawa has more energy than anyone, and Russian Blue Kuehiko Roshihara is a bit of a sourpuss. These two classmates will do all kinds of different jobs to learn how fun and hard it is to work! (Source: Crunchyroll, edited)