By the sea, a contract binds two strangers: Han Jaehun, a cold heir hiding pain, and Kim Haejun, a bright art student burdened by life.“若是这苍穹乃是一个棋盘，那么。我愿做对弈之人！以星辰做棋，以兴亡为赌注，以众生为后盾。以兄弟作支撑！成就我九劫兄弟，傲世九重天的万世美名！”