Jiang Shubai is the cold-faced school boy who is respected by the whole school. He is taciturn but always guarding an unknown substitute in the dark - Lin Jianyao. Lin Jianyao was just an ordinary transfer student, but because of his profile that was similar to that of his old friend Jiang Shubai, he was surrounded by him and endured the gentleness and neglect that seemed to be absent. Until one day, Lin Jianyao dug out a diary in an old bookcase, which was densely filled with the words "He should not be a substitute", as well as a smiling face belonging to another person drawn by Jiang Shubai himself. At that moment, Lin Jianyao tore up the diary and this abnormal attachment. He turned and left, and Jiang Shubai realized that what he loved was never the shadow, but the real Lin Jianyao who dared to tear apart his lies.
