At the beginning, he was thought to be good for nothing and was helped to the throne, but his autocratic manner became increasingly accentuated and finally he was assassinated by Prince Umayado and the Soga Clan.
当初は毒にも薬にもならぬ人物と思われ、大王に擁立されるが次第に横暴な面が目立つようになり、最終的には厩戸と蘇我氏によって暗殺される。