the president of a large corporation, Masahiko, received a consultation from his subcontractor, Mukai. To prevent bankruptcy, financial assistance was needed. Mukai proposed that his daughter, Ai, marry Masahiko's only son, Naoto. Masahiko, who had been interested in Ai for some time, agreed and devised a plan. Until the wedding, he forbade premarital sex, driving Ai's sexual desire to the brink. Then, with Naoto and his wife out of town for five days on a business trip, Masahiko carried out his long-dreamt-of training plan with Ai.
