On an apocalyptic wasteland, Su Wan, a girl with the ability to peer into the subconscious, is ordered to spy on student council president Gu Linyuan. Beneath his gentle exterior, however, she discovers Gu Chen, a second personality held captive within him. As the truth about old experiments and an air raid comes to light, the two struggle amid lies and ruins. When the academy’s dark history points to Su Wan’s father, the dean, she must choose between loyalty and truth. Meanwhile, the life-and-death pact between Gu Linyuan and Gu Chen is about to ignite the final battle.