Hinako, a first-year student, moves to a small coastal town where she spent her childhood, and meets Minato, a firefighter, when he rescues her from a rooftop during a fire. The two share a passion for surfing, and as they spend more time together, they fall in love. However, despite Hinako's strong feelings for Minato, he believes that he must dedicate his life to saving others, and one day, he tragically passes away. Hinako struggles to cope with his loss, but soon, Minato begins to appear to her in various liquids.