Yumi Nagase is the type to get lost in erotic fantasies while doing dishes in the kitchen—the woman's workplace at home. Today, she boldly starts masturbating right in the kitchen, and soon the vibrator isn't enough; she yearns for a real penis. Fulfilling her desire, popular male star Ichitsuru appears. Though teased and dominated by the younger, handsome man, Yumi grows increasingly aroused, and the two are led into intense, passionate sex. With both delivering a full 100-point performance in eroticism, they reach a deeply satisfying climax.