When Yumeji had a relationship with Hikono in 1915, he became suspicious about the relationship between Tamaki and an art student, Seiji TOGO (Seiji), and thus he stabbed her in the arm at the beach of Toyama Prefecture, resulting in them breaking up forever.
夢二が彦乃を知った後の大正4年（1915年）、たまきと画学生東郷青児（青児）との仲を疑い、富山県の海岸で夢二がたまきの腕を刺すことによって破局を迎え絶縁にいたる。