Police Case-Solving System 警察破案系统

The System gives the protagonist a skill called “I Can Take on Ten.” He uses a shoulder throw on a criminal and meets the heroine. It seems the heroine has two sworn older sisters. Then I think he solves a murder case at a slaughterhouse. The victims are a man and a woman who were dating. In the end, it was ghostwritten. It wasn't written by Yunzhongklss, the author of “Intestines Wrapped Around Intestines,” but it was very similar.