In 456, when his father was killed by Emperor Yuryaku, Oke no miko (which was written as "弘計王" in Japanese) escaped with his elder brother, Oke no miko (which was written as "億計王" in Japanese, who was the future Emperor Ninken,) and went into hiding.
安康天皇3年（456年）父が雄略天皇に殺されると、兄の億計王（後の仁賢天皇）と共に逃亡して身を隠した。