Embarking on her high school journey with newfound companions from a camp, Koharu Hanamura is thrilled for the adventures ahead. However, a chance encounter with the enigmatic Mafuyu Shirotsuki, known for her distant demeanor, adds an unexpected twist. As Koharu and Mafuyu reconnect and their bond deepens, old memories and emotions resurface, shaping a heartfelt tale of friendship and personal growth amidst the beauty of cherry blossoms.