I Lost My Memory, Yet Found a Serial Killer's Diary

According to the diary, I'm a highly disciplined serial killer. I get up at six every day, and start the morning with a five-kilometer run to clear my head... Hmm... Makes sense! Up and running! What happens when a coward loses his memory and mistakenly believes he's a serial killer? Lu Tiancheng is a timid coward who gets bullied at work and blamed and berated by relatives at home. But after a car accident, he loses all his memories of the people in his life! Then, while suffering from amnesia, he happens to find a serial killer's diary! Once he