Yang Bi Xin who suffers from schizophrenia almost poisoned her son Ye Jin Feng. Due to the trauma, he began suffering from dissociative identity disorder to nurture another personality by the name of Zhu Ji. Zhu Ji is an expert in handwriting analysis and criminal profiling, hence becoming of great help to Jinfeng as he goes undercover to bring down a criminal organization.
Yang Bi Xin who suffers from schizophrenia almost poisoned her son Ye Jin Feng. Due to the trauma, he began suffering from dissociative identity disorder to nurture another personality by the name of Zhu Ji. Zhu Ji is an expert in handwriting analysis and criminal profiling, hence becoming of great help to Jinfeng as he goes undercover to bring down a criminal organization.