“Brother Chu Zihang, taciturn and secretive, how much regret must you bear to sleep soundly?” “Principal Ange, how heavy is the hatred you carry on your shoulders? If I give you a big hug, will it ease your sorrow a little?” “And you, Eri? The story says you are a witch-like girl, you must be very beautiful, the kind I can be captivated by.” “I really want to see you!” … A recurring nightmare about the future causes Lu Mingfei to cry all night, clutching his blanket. His sorrowful tears seem to drown the world. There are three thousand knives in the world, but regret is the deadliest. The tears, fiercer than a rainstorm, finally break through Lu Mingfei’s stagnant life and extinguish the cowardice hidden in his bones...