19-year-old Hinako Mukaimizu moves to an oceanside town to attend college and indulge in her hobby, surfing, without much thought to her future. When her new apartment catches on fire from fireworks, she is rescued by Minato Hinageshi, a 21-year-old firefighter with a strong sense of justice. Hinako is drawn to his capable personality, and they bond when he begins learning how to surf. As the two spend time together, they fall in love. However, after Hinako tells Minato that waves are the best to surf in during the winter storm, he goes surfing during the storm and drowns while rescuing a jetskiier.