Hideyoshi also knew that the Jesuits deceived and kidnapped as many as 500,000 baptized Japanese (especially beautiful girls) to sell them in Europe and Latin America after 1543 when the Portuguese first introduced the European firearms to Japan.  Later, the Christian boys' group called "the Tensho Ken-o Shonen-shisetsu" (1582-1590) and Tsunenaga Hasekura's group were greatly shocked and disappointed to see Japanese slaves (especially half-naked beautiful Japanese girls in chains) in ships and other occasions on the way to Europe and Latin America.  Of course, such an inhumane thing was impossible without some Christian Japanese lords' influence, especially in Kyushu where many Japanese Buddhist monks and Shinto priests were cruelly murdered in the name of Christianity and numerous Christian churches were built in the sites of demolished Buddhist temples and Shinto shrines.  The most powerful Christian lord was Sorin Otomo who "traded" in medicines, pepper, gunpowder, slaves etc. with Xavier, Luis de Almeida (1525-1583) and other Jesuits, which had made a huge amount of money for Portugal and the Roman Catholic Church for years.  Almeida was also known as the person who built the first Western-style hospital in Bungo-funai (豊後府?; now Oita City) and started medical training for Japanese in Oita in 1558.
  As "the Tensho Ken-o Shonen-shisetsu"' report tells:
  
  "Everywhere we go, so many Japanese women can be seen.  They say that the total number of Japanese slavery women in Europe is as many as about 500,000.  We cannot bear to look at the fact that fair-complexioned, beautiful Japanese girls are in chains, exposing their sexual organs, falling preys to men's lust, and finally to be resold to another proslavery country.  Of course we have long felt massive anger against the White people who set leg irons to our fellow country people to sell them to such far countries.  They also belong to the same European cultural group.  Why do they enslave women from our country?  Fathers of Portuguese churches exchange Japanese women with saltpeter and gunpowder in India and Africa."  (Excerpted and Translated from Hideaki Onizuka's Japanese Emperor's Rosary, vol. II [鬼塚秀昭 『天皇のロザリオ 下』] (2006), pp.96-97 ; the original source: the first edition of Soho Tokutomi's Hsitory of Modern Japanese People: The Toyotomi Era 2nd volume [?富蘇峰『近世日本?民史 豊臣時代乙篇』] (1918-1952), pp.337-387; cf. also Meiko Yamada's Dowan-Hon-Chao (Soul-Wrenching Bridge) the "Rabbits" Crossed [山田盟子 『ウサギたちが渡った?魂橋』] (1995), 2 vols.)

http://p-www.iwate-pu.ac.jp/~acro-ito/Japan_pics/Japan_MZS/Juan_Goto.html