Sayuri, a wife who works as a cleaner to support her husband Atsushi, an unsuccessful painter. One day, the president of the cleaning company asks her to clean the mansion of Amagi Koshizan, a leading figure in the Japanese Western painting world. As Sayuri begins to clean following the instructions of her apprentice, Koshizan stares at her body as if licking it all over. "Have you ever been a model?" Sayuri is surprised by the sudden question. In exchange for a critique of her husband's paintings, she timidly takes off her clothes in front of Koshizan...