During this time, he became friends with Georges Clemenceau, who later became the Prime Minister of France, and fellow scholars who came abroad to study, such as Chomin NAKAE and Masahisa MATSUDA, with which network he continued even after he came back to Japan.
その間、後にフランス首相となるジョルジュ・クレマンソーや、留学生仲間の中江兆民、松田正久らと親交を結び、こうした人脈は帰国後も続いた。