A young man named Jun Umemura, with the look of a radical student, arrives at the boarding house run by widowed 'Mama' Katsu. Struck by his handsome features, she showers him with attention and gradually coaxes him into her bed. But just as he's faced with Mama’s seductive, bare body, he spots a fellow activist, and bolts out the door.

A young man named Jun Umemura, with the look of a radical student, arrives at the boarding house run by widowed 'Mama' Katsu. Struck by his handsome features, she showers him with attention and gradually coaxes him into her bed. But just as he's faced with Mama’s seductive, bare body, he spots a fellow activist ... and bolts out the door.

One day, when a vacancy opened up at the boarding house, an ostentatious move began. An elderly man arrived in a luxury car and directed the movers as fine items—luxurious bedding, a paulownia wood wardrobe, and other furniture—were hauled in. The new boarder turned out to be Ayamaro, the legitimate heir of the former noble Ura Komichi family. Perhaps due to his aristocratic upbringing, he just couldn’t quite match everyone else’s pace.