Mari Takasugi JUY-638 was driven to madness by her husband's boss after seven days of relentless abuse.

While her husband is away on long-term business trips, Mari Takasugi has been caught red-handed by her boss and is forced to obey his every whim, enduring his advances daily to save her husband's job. She tries to bear it until he returns, but her boss's increasingly skillful sexual techniques become increasingly addictive, until the night of the seventh day when she is finally...