- Source: Kaiki (minister)
Kaiki (懐 機, fl. 1427–1451), also known as Huai Ji, was a politician and diplomat of Ryukyu Kingdom.
Kaiki was a Daoist practitioner of Ming Chinese ancestry. He was appointed Kokushō (国相, "Chief Minister") by King Shō Hashi. He played an important role in the unification of Ryukyu.
In 1427, he dug the artificial lake Ryūtan Pond (龍潭) and constructed an artificial hill named Mt. Ankoku (安国山) next to it. He then brought many flowers from China and planted on the hill.
In 1451, during Shō Kinpuku's reign, he built a one-kilometer-long dam, which known as Chōkō Dam (長虹堤, Chōkōtei), 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