"Kansai Enko" doesn't directly translate to a well-known term without context. "Kansai" refers to the Kansai region in Japan, which includes cities like Osaka and Kyoto. "Enko" could imply a kind of educational or training context, but it's not standard Japanese.
Refers to the age "13 years old," a common trope in "junior idol" or related niche media of that period. Shojo (少女 / 処女):
The Kansai Enkou 1 Mami Chuu 1 13 Sai Shojo Soushitsu High case raised concerns about the safety and well-being of children in Japan. The incident highlighted the need for greater awareness and measures to prevent child disappearances, as well as more effective support systems for families of missing children.