The year is 1939. Takechiyo, who grew up in Yanagibashi, is a fourth-year student at Hana Junior High School. His adoptive mother, a former geisha named Kacho, is the woman of his dreams. However, he suddenly finds himself forced to take over as head of the Aoba family, the former feudal lords, and things get complicated! He leaves his beloved mother and heads off to the middle of nowhere, a mountainous countryside that is nothing more than Aoba City in name. When he finally arrives at Aoba Gakumonjo Junior High School, he finds out it's a den of anachronistic eccentrics! The definitive version of Yamato Waki's large-scale youth love comedy!