Wa

, also known as . was a King of Wakoku, who was compared to Emperor Nintoku, founder of the Kawachi dynasty by the historian Hidehiro Okada. He was not among the Five kings of Wa but would be another King of Wa predating them. to the Song dynasty of the Northern and Southern dynasties of China in 487,

Okada (岡田) said of

is Emperor Nintoku, the grandfather of Emperor Yūryaku. 。

Bu of Wa, wrote in a letter addressed to the Song dynasty in China in 487 that he had been engaged in warfare both at sea and abroad since the generation of Grandfather-Dei「祖禰」or his grandfather Dei of Wa. There must be another King of Wa before San, Chin, and Sai.