Because of the indifference and control of his native family, Mu Lingyu left an unhealable scar on his left hand. He longs to escape and to be loved. Because of the cowardice and depression in his bones, Xiao Yi chose to remain silent when faced with Mu Lingyu's sincerity, and missed an entire boyhood.
The two met again in college. Because of Xiao Yi's late approach and clumsy pursuit, Mu Lingyu chose to forgive. As an unexpected truth is revealed, they discover that they are actually "brothers" connected by blood - Xiao Yi's mother is the biological mother who abandoned Mu Lingyu.
Mu Lingyu went from forgiving Xiao Yi to suffering and resisting, but Xiao Yi went from pursuing Mu Lingyu to silently protecting her. Mu Lingyu fell in despair, but in a coma, he saw clearly that Xiao Yi had been protecting him from the world's malice behind his back.
The scar finally faded. He woke up from a coma and held the hands that never let go - it turned out that even when he thought he was abandoned by the whole world, there was someone who loved him deeply.
Intention: Study hard