He identified Taromai as the eldest son of Shō Hashi and concluded that Taromai, King of Sannan, was a puppet of Chūzan. According to Wada, Shō Hashi overthrew the King of Sannan in 1403 and ascended to the throne.
He identified Taromai as the eldest son of Shō Hashi and concluded that Taromai, the ruler of Sannan, was a puppet controlled by Chūzan. According to Wada, Shō Hashi usurped the throne from the King of Sannan in 1403 and ascended to the throne.