Why is everyone getting so bitchy about stuff like this. The book is about a guy who gets a system to track things, dont expect things to make sense.
His grandparents had died when he was two or three years old. He was a time-traveler, so he still had vivid memories of the two elders.
Eastern · Sanmao Wu
By any chance are you a professional killer?
Chen Shan had been retired from the army for 20 years. His martial arts was rusty, so he wasn't exactly a strong foe for Wei Laosan, who was a professional killer.
I Can Track Everything
Eastern · Sanmao Wu