After rebirth, I rejected the rich yandere lady - Chapter 572 - 257: The Arrival of the Asura Field?

In the City of Crime, one law stands above them all: Only the strongest can live.

Surgeon Guan Ryo Is reborn in Naruto’s world! Enjoy his trip as he uses his knowledge of the story to find his path in this troubled world and eventually stand at the top of Konoha!

- Description from Novelupdates

The main protagonist Chen He often meets crazy people in his life, and all these people have very deep prejudices against him. They often do weird things.

(1)

Once, Chen He polished off a bunch of hired killers (who seemed to be after him?), and eventually found the mastermind.

Chen He: You and I are complete strangers, so why are you doing this to me?

Mastermind: You’re gonna kill me after ten years! Of course I’ve got to make a preemptive strike.

Chen He: …

(2)

Chen He: Sir, we have had no bad blood between us, and I have not done anything to offend you. Why are you being so threatening?

Taoist priest: Hmph! In the future, you’ll be offending me to no end. Haven’t you been looking down on me all your life?

Chen He: …but I still have my entire life ahead of me!

(3)

Antagonist A: Chen He! Because of your master, I was rejected by XX Sect, and so I was forced to become a demonic cultivator!

Chen He: Who…who are you?

Antagonist B: My future lover’s meridians and good looks were ruined by you, and I’m definitely not gonna let you do it this time!

Chen He could not help but think: There is definitely something wrong with my life!

- Description from Novelupdates

A man who was once called the world strongest agent ended up becoming a teacher after his retirement to train the new generation of agents. After many years of training his disciples, he is killed at the age of 60 by the ploy of a secret organization and was reincarnated in another world with all his past memories.Though he was surprised by the magic and the strange species of that world, he adapted very fast to his condition as a newborn and took advantage of it. He acquired special magic and gained a massive amount of strength thanks to his tight discipline in order to reach his goal: resume his career as a teacher which he left halfway through in his previous life.This is the story of a man who based on the memories and the experiences of his previous life, became a teacher who travels through the world with his new students.