Sakurai Hiromi (Sorimachi Takashi) and Suzuki Kaito (Takenouchi Yutaka) leave Diamond Head behind in search of "my ocean." Three months later, the two coincidentally find themselves staying on the same southern island overseas. Hiromi is in charge of the poolside bar at a large hotel, dating the heiress there, and living a glamorous life. Kaito works for a marine biologist, transporting dolphins to a landlocked country, living a wild life. When Kaito's work takes him to the island as well, they run into each other by chance. The two feel something is off about who they are now. Where is their "true ocean"? Makoto and Haruko now run the B&B back in Japan. One day, they win a trip to the island which will make the reunion complete.