The sequel to "Flowers and Dragons". Kingoro Tamai founded a family in the port of Wakamatsu. He unites people with his courage, and revolts against the entrepreneur Oki Nakashi, who is teeming with vices. Kingoro and his family are also forced to fight against the Ezaki-Gumi group, which is opposed by Tomoda Kizo, who is trying to control the port of Wakamatsu.
Unfortunately the movie Flower and Dragon: Duel of the Sea Caves is not yet available on HBO Max.
| Writing | Ashihei Hino | Novel |
| Directing | Kōsaku Yamashita | Director |
| Writing | Kei Tasaka | Writer |
| Writing | Sadao Nakajima | Writer |
| Crew | Osamu Furuya | Cinematography |
| Sound | Minoru Miki | Music |
| Editing | Katsumi Kawai | Editor |
