The Underground People desire to leave their overcrowded cavern and seize control of the surface world, but they never quite succeed. A second episode, Christmas Aid, soon followed, in which the brainless Undergrounders' second futile escape attempt is set to music by the popular group Yukadan. The first volume also included two unrelated stories by Ishii: 101 Ninja and Ken-chan's Space Exploration Adventure.

Specials included in the OVA of Hyakujitsu no Bara.

Compilation film of .

"The word 'no' doesn't exist in a concierge's dictionary." That's just one of the demanding rules that Akino must abide by in her new job as a saleswoman at the elegant and expansive Hokkyoku Department Store. It's a very special store — the customers are all animals, and the most valued among them are of extinct species. Sea minks, laughing owls, Japanese wolves, even an enormous mammoth — that's Mr. Woolly, the celebrated sculptor whose works are showcased at the store. It's still a luxury retail space, though, and anxious Akino finds her hands full with the customers' challenging requests. These range from hard-to-find merchandise to more complicated matters of the heart. Can the inexperienced Akino fulfill their whims and meet their expectations? If she wants to keep her job, she'll have to succeed while under constant observation by the fussy floor manager Mr. Todo, a creepy consultant eager to downsize the staff, and the store's enigmatic president (who is not a penguin, by the way!).