Princess Kakyuu Cast List
Here are the actress who played Princess Kakyuu:
Singing, Acting, Dancing
# of Myu Performances:
Sakoto on Site [offical site, Japanese]
She played Princess Kakyuu in both Eien Densetsu and Eien Densetsu Kaiteiban The Final First Stage!!. As Princess Kakyuu, she was operatic and graceful.
Following myu she has been very busy acting on stage in multiple shows.
Eien Densetsu Final Act [kaiteiban], Final First Stage
March 3, 1973
# of Myu performances:
Ai played Princess Kakyuu in one musical only, Kakyuu-Ouhi Kourin The Second Stage Final.
I haven't found any information on Ai following her myu days.