Beneath the surface of the modern city lies a hidden “mirror space,” built from humanity's collective subconscious. Lin Shen, an advertising agency employee, unexpectedly begins an extraordinary journey between reality and the mirror world after a space-time distortion. He must evade a mysterious organization in black that is hunting him, while also fighting the sinister schemes of a technology conglomerate. From discovering the “memory black market” in the mirror space, to venturing into the “Mirage City,” and finally confronting the “Observer,” who seeks to devour the real world, Lin Shen continues to awaken new abilities and gradually uncovers a shocking secret woven through parallel timelines. Caught in the vortex of fate, can he break the causal loop and protect the balance between the two worlds?