Hanamachi, where geisha live, had a large damage by the aerial attacks by the U.S. However, even from the ruins, the industry of geisha blooms. The Occupation army became the new customers for geisha.
As the Japanese market started to bloom with high economic growth period, the world of geisha prospered again. However, as Japanese began to have a wide range of leisure, there were more fun and cheap events except visiting expensive restaurants with geisha. People also start to prefer bar and clubs.
Moreover, because of Labor Standards Acts and Child Welfare Acts, it became impossible to foster children from a very young age and only trainee who are older than 18 years old can become a geisha now.
Because of these reasons, throughout late Showa Era and beginning of Heisei Era, a lot of Hanamachis declined. Fukagawa is no exception.