In 482, Emperor Seinei welcomed the two brothers into the imperial court and designated the older Oke no Mikoto ("億計王") as Crown Prince and the younger Oke no Mikoto ("弘計王") as an imperial prince, respectively.
翌年（482年）2王を宮中に迎え入れ、億計王を立太子に、弘計王を皇子とした。