Since high school, "Nanako" has secretly harbored feelings for "Yui," choosing to remain just a close friend without ever confessing. However, one day, when "Yui" gets dumped by her boyfriend and falls into despair, Nanako sees her chance. Faced with Yui's vulnerability, the emotions she's long suppressed can no longer be contained. A heartbreaking love story unfolds as deep bonds and conflicting desires collide.