To Catch the Murderer in a Mysterious Case, Codenamed Zhang Jianguo

There are always some unknown places in this world where some unknown horrific murders occur. The existence of the Crime Team is to eliminate these unknown perverts. Zhang Jianguo is just a code name. He is the best agent in this group. He is also the only inheritor of Yi Ji Jing. He is not a good person, but he often does some good things. He is not a bad person, but he does some bad things from time to time. This is my story, my code name is Zhang Jianguo.