With the involvement of Tokyo Governor Inoue Tomokazu, Shinpei Goto, and others, he was selected as the first principal of the five prefectural junior high schools.

Ito, who held liberal education as the ideal, also followed the spirit of Taisho democracy and hired female teachers one after another from the viewpoint of "co-education".

In addition, a "relocation retreat team" was formed to experience rural life in Ito's hometown of Shiga-mura, Kitasaku-gun (now Saku-shi), Nagano Prefecture.

All of these were groundbreaking ideas at the time, and the names of the five Prefectural Junior High Schools and Choshichi Ito spread throughout Japan as unconventional educators in every way.

On Dragon Boat Festival, Ito and his students flew a paper carp filled with balloons from the schoolyard, hoping that it would reach the United States.