Kantaro: The Sweet Tooth Salaryman

Wako Taira is 31 years old. She works part-time at a cinema close to her home. Her boyfriend is Fu-kun and they have lived together for three years. She has never thought of breaking up with her boyfriend, considering her age. One day, she meets high school student Yumeaki Iko. She can't resist him. Wako Taira has an affair with Yumeaki Iko.

In an alternate history where the male population is nearly decimated, eligible men serve as concubines to the woman shogun inside the walls of the Ooku.