On November 20 in 1203, with over a hundred other gokenin, he attended MINAMOTO no Sanetomo's ceremony of attaining manhood, where he served the task of presenting the armor, sword and horse with Tsunehide CHIBA.
建仁3年（1203年）10月8日、源実朝の元服の儀に御家人百余名と共に参列し、鎧剣馬を奉ずる役を千葉常秀と共に務める。