To prepare for his exams, the young man moved to Tokyo and lived as a boarder at the home of the Hatano couple, acquaintances of his uncle. The beautiful and kind landlady, Yui-san, took good care of him every day. The young man harbored feelings for Yui-san and spent his days yearning for the landlady's ample figure. That winter, his exam failure was confirmed, and he decided to return to his hometown to take over the family business...
