City romance novelist Ai visits an island, where carefree guide Kaishin changes his mood.

Exploring the island with Kaishin, Ai opens up—while in Tokyo, actress Himeka seeks Fumi.

Ai struggles with writer’s block and anxiety, and Kaishin takes him out for fresh air. They arrive at the sea, glowing with candlelight and starlight, where kisses and embraces bring them closer. Meanwhile, Himeka and Fumi use their “fake lover” relationship to quell rumors, exchanging bickering words but gradually forming a unique bond.

Kaishin holds a marine conservation seminar, showing his deep love and commitment to the ocean. After the event, the pair visit Kaishin’s home, share their feelings, and ignite their passion. The next day, Ai receives an urgent work call and rushes back to Tokyo. Reluctant to part, Ai asks if Kaishin can come to Tokyo with him.