Participation years from 2006(12th)

Okayama Ryukoku High School (Kasaoka-city, Okayama, Japan) was founded in 1923. The school was originally opened by the local Jodoshinshu (Jodoshin religious sect) priest, and spirit of Buddhism which values importance of life and the mind of appreciation have been succeeded. It has become the most popular high school in the area with over 3000 applicants.