Kaidou Akira comes from a wealthy background and is the heir of a large company, Tokai Yuusen. On the other hand, his genius classmate from the University of Tokyo, Yamazaki Akira had a tough life due to the bankruptcy of his father's company and having to run away from creditors but overcomes the odds to graduatefrom the top-notch school. The two are employed at the same bank and get caught in a battle lasting over 10 years which causes upheavals in their lives.