The Japanese men who prefer virtual girlfriends to sexManga and anime advertising posters on a building in Akihabara, Tokyo Unless something happens to boost Japan's birth rate, its population will shrink by a third between now and 2060. One reason for the lack of babies is the emergence of a new breed of Japanese men, the otaku, who love manga, anime and computers - and sometimes show little interest in sex. Tokyo is the world's largest metropolis a
