Protagonist Yamasaki Taiki from a first-class enterprise. He dissatisfaction toward the company the resignation doesn't come true, stress was accumulated.

One day from work of exhausted in a return crowded train, next to the elegantly beauty mature woman of chaste and modest. Though Protagonist that is pressed to crowd of people, touched her ass and got impatient, it is attracted to her suspicious charm and the groping is started as it is. She the body is hardened but doesn't refuse, tather let cheeks flush and seem to be pleased. Protagonist which was not able to endure, it ejaculates voluntarily climaxing by her finger twitting. Though Protagonist that calms down and turns pale, it arrives at the terminal station, she was swept away by the crowd with being desolate.

The next day, protagonist that works hard at reception at party that raises company. Then in the hall, it encounters the woman who have molested yesterday. And she "President's wife" it knows. Though Protagonist that trembles secretly determining the unemployed person, president's wife looks down shamefully, eyes sometimes moistened had been turned to Protagonist.

The party ends nothing happened as it is, though Protagonist boarded the crowded train as usual... President's wife who should have returned from the hall by car also takes the same train, the corpulent body has been pressed looking down without matching the glance. Protagonist convinced that she is requesting him, she is blamed more intensely than yesterday, in addition it even inserts it in the car.

Protagonist thought for an immorality excitement to exist in the act called the molester in the crowded train, it begins to choose the following target.