The story tells the adventures of the boy, 21 emon, engaged in the management of a hotel belonging to his family for years. In his problems, 21 emons is helped by the robot Gonsuke and the little alien Monga.

Based on the children's book, a gang of eleven cats, exiled for stealing and sharing a fish, believe to be on a quest for a grand fish of legend, unaware that the tale is made up. Will a lie turned dream become reality for our feisty felines?

In 19th century France, an escaped convict seeks redemption while caring for a young woman whose mother he once protected, and aligning himself with a band of student revolutionaries.