She and he, who were both fallen in the world, saw their own reflections in each other. From acquaintance to friendship, the two gradually felt that the other person was the most important person in their lives in their confession. From then on, they began to get out of their lonely hearts, re-recognize life, and behave well in order to love them and the people they love. Recalling the wrong paths they had taken, they shed sad tears and cherished each other even more from then on.