He rallied 25,000 soldiers in Chikushi under General Kume no Miko, his younger maternal half-brother, but Kume no Miko died during the preparation for crossing the sea (According to one theory, Kume no Miko was assassinated by an assassin sent by Silla.)
同母弟・来目皇子を将軍に筑紫に2万5千の軍衆を集めたが、渡海準備中に来目皇子が死去した（新羅の刺客に暗殺されたという説がある）。