The films spans two decades as the story unfolds in a series of flashbacks that begin when Qiyue and Ansheng were just thirteen. The two became inseparable until they met a boy who ended up tearing their lives apart.

Soul Mate

Wu Qingqing is an agent of the International Security Alliance (to combat mutant crime) and is ordered to infiltrate Medusa Plastic Hospital to collect evidence of the secret research on genetic induction fluid by its direct consortium to create mutant fighters. Wu Qingqing successfully infiltrates, but was forced to inject a gene induction fluid.