Cheng Tianyi

Cheng Tianyi is a hot-headed police officer in the Metropolitan System. He has black hair and is an adult. He is a skilled fighter and is always willing to put his life on the line to protect his city. He is also a bit of a maverick, often going against orders if he thinks it's the right thing to do. One day, Cheng Tianyi is called to investigate a series of murders. The victims are all young women, and they have all been killed in the same way. Cheng Tianyi quickly realizes that he is dealing with a serial killer, and he is determined to stop him before he kills again. The investigation leads Cheng Tianyi to a dark and dangerous underworld, where he must face off against some of the most ruthless criminals in the city. But he is not afraid, and he is determined to bring the killer to justice. Cheng Tianyi is a hero, and he is a symbol of hope for the people of the Metropolitan System. He is a reminder that there are still good people in the world, and that they will always fight for what is right.