Marine Blue no Kaze ni Dakarete Manga

Tachibana works in a beachside cafe and roams the beach sands with her dog, Dolphin. Then her cousin Ippei loses a surfing challenge to a newcomer. With a shock Tachibana recognizes Arikawa, her first love--her first heartbreak. After four years he's back from the U.S. and he thinks Tachibana doesn't like him. But before they get a chance to talk Ippei challenges Arikawa to another surfing match--in the face of an on-coming hurricane!