The End of the Long Night by Dongshan Muyu

Twenty-two-year-old Lu Zheng is the most dazzling new star of Jiangcheng Police Department. He has solved three major cases in less than a year after joining the police. Everyone said that this young man was born to be a detective. Only he himself knows that every case he pursues secretly points in the same direction - on August 14, 2019, his parents were both killed in a "home invasion". At the age of seventeen, he suffered a serious head injury. When he woke up, he lost all his memory and all clues about that night. For five years, he used all available resources to secretly investigate the truth behind his parents' death. The truth emerged step by step, pointing to a direction he had never thought of... Some nights are so long that you need to forget who you are in order to survive until dawn. But when the first ray of light comes in and pierces all the lies and silence, he must personally tear open the curtain of memory that has protected him for five years to face the cruelest answer. At the end of the night, who is the murderer?