Ten years after their last reunion, Ayako attends her high school class reunion and runs into Katsuki Toda, the man she once loved in her youth. Katsuki remains unchanged from those days—he's now divorced and single, while Ayako is married with a family. Filled with nostalgia and emotion, Katsuki suddenly confesses his feelings. Flustered by his words, Ayako finds her lips taken by him in a forceful kiss. That night at the reunion, buried emotions resurface, linking past regrets to the present. A poignant and tender moment of reconnection, blending warmth and sorrow as their desires reignite.