Empath Shen Qingxian is forced to become the tranquilizer for "natural disaster" Lu Fen, only to find that their abilities are mirror images of each other - one swallows pain, and the other ignites hope. When the hunt comes, the two mortal enemies must learn to trust each other, because the only key to saving the collapsing world lies in the echoes of the scarred hearts of the two. From a cold agreement partner to a symbiosis linked by fate, they must uncover the ultimate truth about their abilities under the undercurrent of the academy and the pursuit of alien species. When the backlight coexists, the world trembles.
