"Cruel is the strife of brothers," wrote Aristotle. The observation, it seems, applies even in the normally bland and polite world of Japanese business, specifically in the case of the Tsutsumi brothers, whose quiet rivalry has led not only to strife but also to success and enormous wealth. If that is not enough to inspire a crackling TV mini-series, add the fact that at least one of their fortunes rests on the graves of shoguns.
Seiji Tsutsumi, 61, is the dapper, soft-spoken head of the Seibu Saison Group (1987 sales: $28 billion), a conglomerate of department stores, supermarkets and service organizations....