Shō Hashi overthrew chief Bunei of Chūzan in 1406 and installed his father as king.
His kingship was acknowledged by the Yongle Emperor of China, who caused a diplomatic mission to be sent to the Ryukyuan capital in 1415.
On 30 January 1406, the Yongle Emperor expressed horror when the Ryukyuans castrated some of their own children to become eunuchs to serve in the Ming imperial palace.
[4] This faux pas committed by Bunei contributed to, if not resulted in, Shō Hashi's coup.
Shishō was king when the forces of Chūzan invaded and conquered the neighboring Kingdom of Hokuzan in 1416.