Shingakai is the juku in Japan founded in 1956 and owned by Riso Kyoiku.
According to PR-model, shingakai.co.jp is ranked 2,808,396th in multilingual Wikipedia, in particular this website is ranked 254,835th in Japanese Wikipedia.
The website is placed before kidsprep.jp and after e-ojuken.com in the BestRef global ranking of the most important sources of Wikipedia.
