Martial Arts: from Black Boxing to Top of the World

[Urban high martial arts + Chinese martial arts + Xingyiquan + boxing + MMA mixed martial arts + urban life + single female protagonist + no harem] In order to treat his sister's illness, young Chen Hui took up boxing to make money. During the competition, the tendon and nerves of his right hand were severed by his opponent, causing him to become permanently disabled. In order to save his sister, he signed the "Voluntary Form for Human Experiments". Can my sister be saved? What happened to Chen Hui? See how young Chen Hui becomes the world fighting king step by step from black boxing!