Nami has been the secretary to President Sawaki for two years. After succumbing to Sawaki's persistent advances and becoming his mistress, she has been devoted to him both in public and private life. However, one day, she is forced into a relationship by her most important client, Section Chief Yajima. Yajima has an enormous penis... Knotted rope digging into her vagina, rubbing her body, dragging her around like a bitch, anal cunnilingus, nipple teasing, spanking, candle torture, face and nose play, and brutal deep throating. Nami is sexually trained by two men, one young and one old, on a daily basis, and has become a secretary bitch who always serves her with the highest sensitivity...