Mika is a shy wife who cannot even make eye contact with anyone other than her husband. She cannot even imagine being with another man. Her husband loved her and did not have to worry about her cheating. But one day, her husband brought his boss, Sawaki, over to the house. Mika was unable to make eye contact with Sawaki, but when her husband was not looking, Sawaki looked at her and kissed her. She could never forget the Hitomi in Sawaki's eyes at that moment. It was like a stake had been driven into Kokoro. And the next day, after not being able to sleep a wink, Sawaki came over again...