A young Japanese photographer, Makoto, suddenly receives a letter from his ex-girlfriend, Shizuku, who is in the United States. Memories begin to surface, but later he learns that Shizuku had already died in New York a year ago. Unshakable memories emerge: Makoto and Shizuku met through photography, and Shizuku became the leading lady in his lens. The loving couple captured many sweet moments together. Even after their breakup, Makoto couldn't stop thinking about her. Driven by deep longing, Makoto resolutely travels to New York, carrying Shizuku's photographs with him to retrace her steps in the city, only to gradually uncover an unexpected truth...