, also known as Huai Ji, was a politician and diplomat of the Ryukyu Kingdom.
was a Daoist practitioner of Ming Chinese ancestry.Dao Companion to Japanese Confucian Philosophy He was appointed by the King Shō Hashi. He played an important role in the unification of Ryukyu.
In 1427, he dug the artificial lake and constructed an artificial hill named next to it. He then brought many flowers from China and planted them on the hill.
In 1451, during Shō Kinpuku's reign, he built a one-kilometer-long dam, which known as , to connect Naha harbor and Tomari harbor.
References
懐機 (かいき) 懐機 - 朝日日本歴史人物事典