Mistress-keeping was traditional in Japan because virtually all marriages were arranged, love was not involved, and a nation-wide legal prostitution system catered to men (over and above the thousands of geisha). Times have changed, but mistress-keeping is still common. Old Japan hand and internationally known author of books on Asia Boye Lafayette De Mente takes an insider's and often humorous look at mistress-keeping in Japan then and now. The book is illustrated with provocative kanji characters. His insights into Japan's mizu shobai (water business), or the entertainment trades, are invaluable for businessmen and tourists alike.