From Forbidden Garden:

Makoto got dumped because her boyfriend was cheating, her friends took her to the beach to calm her mind, but her unstabled emotions caused her to try to commit suicide. During her attempt she was rescued by surfer Shin. With Hidari Shin's help, Makoto slowly got out of her shadowy past relationship and the two start falling in love. But that drowning incident led Makoto to develop a fear of the sea. But now Shin must return home and inherit his family's properties, how will Makoto get over her fears, and become the fisherman's wife?