Haruka, who had been enduring a miserable high school life due to relentless bullying, always held on to the hope that things would get better someday. However, her world crumbled when she lost her beloved mother, leaving her devastated. Overcome with grief, Haruka found solace in an unexpected place—on the school rooftop, where her classmate Mikoto offered her comfort and, surprisingly, kissed her. But just as they shared that moment, Haruka lost her balance, and both she and Mikoto tumbled from the rooftop together—what will become of their fates now?