New one-armed knife

Lei Li (Jiang Dawei), a young hero in white who is famous for his unique skills of "Mandarin Duck Double Blades", was set up and framed by Long Yizhi (Gu Feng). After retiring from the martial arts world with his right arm, he went undercover and worked as a waiter in a small restaurant. He lived a life where he was insulted and bullied by others. Ba Jiao (Li Jing), the daughter of a neighbor blacksmith, loved him and often encouraged him to reshape his image. However, Lei Li could not defeat the demon. After being fated to get to know Feng Junjie (Dilong), Lei Li regained his confidence in life and agreed that the two of them would go to a life of seclusion together after Feng Junjie went to Long Yizhi's date. Unfortunately...