The Kaori went out with sales force, Sahara of the same company assuming marriage. But love of Sawara seems to fade recently. A co-worker, Mariko seems to be a cause for some reason. One day Mariko did Masturbation in the neighbor when Kaori went to the restroom. Were the Kaori which returned to the seat in a hurry, but the Reiko of the section manager directed Sawara using amorous glances there. A few days later, the Reiko tormented Mariko intensely in a late-night restroom. The Mariko was Slave of the Reiko.