Why did Kameyama Kaoru leave?

Because he accepted the invitation of the Ministry of Justice (Sakamoto Xiaoming) in the bureaucratic period, he resigned from the Metropolitan Police Department and went to the Public Security Investigation Department to assist in the transformation. On the other hand, Kameyama's departure from Teke dates back to. Kameyama learned that her high school friend had passed away. In order to fulfill her last wish, she taught the children what "justice" was, and immigrated to Salwin (a fictional country), a small South Asian country where unhealthy practices spread. Sugiyama Yujing expressed respect for Kameyama's decision and left a message to practice "Please pay attention to safety anyway".