"Every morning, I'll be the one to wake you, Mizu." So her beloved Kairi had promised, until a plane crash 3 months after their wedding took him away from her forever. Now a widow, but unable to accept her husband's death, Mizuki Mizusawa deliberately moves closer to the ocean and starts a job in a brand-new place. That same day, she unexpectedly encounters a college student named Kaoru Suoh, who is the spitting image of a young Kairi. The first time they meet, Kaoru calls her "Mizu," which is just what her husband Kairi used to call her...! Though this enigmatic and handsome college student Kaoru may be playing with her heart, Mizuki finds herself drawn to him... A story of the romance between two people devoted to love despite their heartbreak.