- Established: 1539
- Other Names: 玉竜山 (Gyokuryuuzan)
- Japanese: 海国寺 (Kaikokuji)
The temple grounds contain the grave of Tokashiki peechin Shinfu Ma Genei (1710-1749), who was a shisan (captain of the guard) in the 1748 Ryukyuan embassy to Edo. He died on 1/12 the following year during the return from Edo, and was buried at Kaikoku-ji.
- Watanabe Miki. "Nihon ni okeru Ryûkyû shiseki." (personal website)