An ordinary office worker, Takuya Tomizawa, promised his future to his girlfriend, Kazumi Hirose. However, one day, Tenzen Kugayama , who is the head of the Kugayama Zaibatsu and has enormous financial power and power, is forced to shoulder a debt of 10 billion as a joint guarantor for his mother who has evaporated . From this time on, the battle between Takuya's Hell and Kugayama Tenzen began. In front of Takuya, a variety of women, such as Yang Mei Chuan, who is young and the top of the overseas Chinese, the cute Maejima Marie, the active Naoko Mimura, the intelligent Kaori Hayami, and the daughter of Tenzen, Saki Kugayama. It becomes a partner, an enemy, and finally a story of economic reform involving the financial industry. The main focus is a money war between the weak and the strong that makes use of the author's career, but it is also characterized by many women getting involved with the main character, Takuya Tomizawa.