Overview
"A School Behind Bars" centers around Asahi Junior High School, which is located within Nagano Matsumoto Boy's prison in Matsumoto City, Nagano Prefecture - the only public school in Japan that is located inside a prison. The school's students are all prisoners ranging in age from 20-70. The students are carefully selected after taking an entrance exam and being selected by the school's admission board.
| Actor | Age then | Age now | |
|---|---|---|---|
 | 34 | 49 | |
 | 75 | December 7, 2013 (78) | |
 | 40 | 55 | |
 | 18 | 33 | |
 | 50 | 65 | |
 | 85 | October 2, 2012 (87) | |
 | 65 | March 30, 2014 (69) |