Yôko Mikawa

The eldest daughter of a rural family Mon returns home from Tokyo pregnant after an affair with a college student Kobata, which causes a scandal that will threaten the marriage prospects of the younger sister San, in her cash-strapped family. The ill-tempered eldest brother Inokichi decides to take on the role of disciplinarian, with harrowing results.

Shimada is a student of U College. When the college's baseball team wins the day, he and his friend Ito drug two girls they met at the game.