Piarists Kaisei Catholic Junior & Senior High School is the Japanese piarist school.
According to PR-model, kaisei.ed.jp is ranked 247,560th in multilingual Wikipedia, in particular this website is ranked 17,893rd in Japanese Wikipedia.
The website is placed before thethaohcm.vn and after uogcc.org.ua in the BestRef global ranking of the most important sources of Wikipedia.