This study is intend as a social scientific investigation for as to why in Japanese traditional entertainment industry, The Takarazuka opera has maintained its high quality performance and survived to this day, with a focus on the structure of business system. With a view towards examining more heuristic facts on the basis of data, I found three peculiarity points of this business system. 1) The career development processes of performers open to the public as performances 2) Those performances are opportunities work like a star selection system. 3) Customers obtain pleasure from performances and performer's career development processes.