Ninomiya's secretary, Moriyama, tells him that he wants to date Ninomiya's only daughter, Sayuki, who Ninomiya loves so much, but he rejects him saying he can't treat his beloved daughter like a secretary. Moriyama, who has decided that he will not be able to compete with the frontal attack, asks Sano, an informant who undertakes backroom work related to the political world, for cooperation. He devised a plan to turn Sayuki into her slave.
