Nao married Katsu and left the company, but when Katsu's family business collapsed, leaving him with massive debt, he was forced to seek financial help from company president Ozawa. Ozawa agreed to assist on the condition that Nao return to work as his personal secretary. From then on, Nao spent increasing amounts of time alone with Ozawa in the executive office. Though Katsu trusts Nao, he grows uneasy about her relationship with Ozawa. One evening, the blinds in the president's office close, and Katsu's gaze falls upon Ozawa and Nao deeply engaged in passionate kissing and sex. As his anxiety intensifies, will Nao's true nature finally be revealed?