I Really Am a Killer!

Chen Xian, the world's top killer, only wants to be an ordinary social beast after washing his hands, living a peaceful life from 9 to 5 To this end, he carefully disguised himself as a "simple young man" who grew up with his grandfather in the mountains and worked hard to study and get out of the mountains. His "health theory" and "mountain rules" were his protective color. But he never expected that his indelible "professional habits" would appear out of place in a world of ordinary people, and even a bit... Too shocking. Everyone thought he was a severe chuunibyou who lived in role-playing, until one day, the danger really came to the ordinary people around him.