When he was four years old, Gu Shen was torn in half. One half was trapped in the dream (Gu Yuan), and the other half was living in reality, and was regarded as mentally ill. Twenty years later, he would dream of the young man wearing an old sweater every night, saying, "I'll take you home." When a series of murders revealed the truth from twenty years ago, Gu Shen had to step into the night city and face the unhealed "remnants". But he didn't know that he contained the power left by his father in his body, which was enough to fight against the entire Forgotten Order. This time, they finally have to fight side by side.
