He was enthroned after ten months he was born due to his maternal grandfather, Koremasa's political influence; however, when he succeeded to the throne at seventeen, Koremasa had already passed away and he did not have any powerful maternal relative, so his reign only lasted a little more than two years.
生後10ヶ月足らずで立太子したのは、摂政であった外祖父伊尹の外祖父によるものだが、17歳で即位時には既に伊尹は亡くなっており、有力な外戚を持たなかった事は、2年足らずの在位という後果を招いた。