Nanaho is a married woman who lives with a husband who is serious about his work but has a strong sexual desire. On the day she invites her husband's boss over and has sex with him at his request, Nanaho is told by her boss that her husband is in the process of being demoted. The condition that her boss sets in exchange for a good word is that he must be allowed to use Nanaho's voluptuous body as he pleases. Nanaho is forced to accept the condition and is repeatedly raped without being able to tell her husband. As she is tossed about by his increasingly risky demands, Nanaho begins to realize that her feelings go beyond guilt...