After a memorable summer break, Aoi Yukimura is determined to pursue her newfound passion for mountaineering. Overcoming her fear of heights and fulfilling a childhood promise with Hinata Kuraue, Aoi eagerly anticipates any chance to climb, including a second attempt at conquering Mt. Fuji the following summer. As she prepares diligently for the challenging adventure, the evolving seasons bring forth budding hopes that subtly test the friendship between Aoi and Hinata, hinting at diverging visions for the future.