Nakagawa gained cooperation from Takemaro SUEHIRO, a younger brother of Kinmochi SAIONJI, as well as backing from key figures in the political and business worlds, as well as the network of the academy, and established a three-year night school by taking a room of 'Seikiro (former Yoshidaya),' a restaurant in Sanbongi-dori Street, Kamigyo Ward.
中川は政財界の主要人物や学界人脈から後援を得るとともに、西園寺公望の実弟・末弘威麿らの協力を得て、上京区三本木通にあった料亭「清輝楼（旧・吉田屋）」を間借りして三年制の夜間学校を設立した。