In 1493, however, Tomiko carried out a coup with the help of Masamoto HOSAWA, dethroning Yoshiki and instead installing Yoshizumi ASHIKAGA, who was Yoshimasa's nephew and the son of Masatomo ASHIKAGA, the Horigoe-Kubo (Coup d'Etat in Meio) as shogun.
だが、1493年（明応2）に細川政元と共にクーデターを起こし義材を廃し、義政の甥で堀越公方足利政知の子足利義澄を将軍に就ける（明応の政変）。