Cheng Yi, the male protagonist of this book, is 26 years old and the leader of the Criminal Team A of the Serious Crime Team of the U City Police Department. Normally, he always looks sleepy and lifeless. Looking at him, you wouldn't think he was a policeman at all; but when a case happens, he is completely different from usual, with a serious and rigorous attitude in handling cases, and his brain is running faster than the CPU fan in the computer. He is also handsome and handsome, what a pity! Apart from handling cases, he spends all his time sleeping, so he is already in his twenties and has not even found a "girlfriend" yet.
