I gaze at your back in spring.

Tachibana Asuka, who had become isolated due to her poor social navigation in class from the start of the new school year, becomes close to Kasukabe Kodama, who had likewise been kept at a distance by those around her, by chance. Asuka is drawn to Kodama's innocent smile that belies her composed beauty, and develops romantic feelings for her despite knowing that Kodama has someone she loves. During the Golden Week holiday, Asuka finally meets her romantic rival face-to-face. As she listens to Kodama recount the memory of how she first met her lover, Asuka secretly harbors the conviction that she herself is the one who should be standing beside Kodama, and her determination to win over her unseen rival grows stronger.