Campus Rebirth: The Strongest Female Agent - Chapter 54: The Principal’s Change Of Mind. I’m Going To Kill You

Our protagonist Caam is a man from Earth that was reincarnated into this world as a demon. In order to survive, he spared no effort in avoiding the sparks of battle and without noticing it, he became strong himself.

drop out of school

When I got home, I reopened the blacksmith shop.

From then on, this blacksmith shop was no longer ordinary.

The best knives in the world are born here.

The thrust-to-weight ratio of the handmade micro-turbojet directly exploded.

The micro-drones flourished in his hands.

- Description from novelbuddy

In novels with a stud there is always a Senior Martial Brother like this:

In the early stages of the novel, his innate talent is high, his cultivation is good, his appearance is handsome, and he has an intelligent, cute younger Martial Sister as a fiancée.

In the middle stages of the novel, he is caught unprepared and defeated by a young disciple (the protagonist) in the sect who’s hardly remarkable at all. From then on, he falls from his godly altar and loses his brilliance. Even his young Martial Sister leaves him for someone else.

In the late stages of the novel, he continues to turn dark, going down the Demonic Path and becoming the major villainous boss. However, the protagonist still ruthlessly defeats him and his soul is eternally sealed.

Once Qin Mo opened his eyes, he discovered that he had become this Senior Martial Brother.

- Description from Novelupdates

After a tragic accident that claimed the lives of his parents and little sister, Leo, just 17 years old, found himself shouldering all responsibilities alone.By some miracle, he survived the past four months on his own—attending high school, juggling multiple part-time jobs, and enduring sympathetic gazes that pained him.The only respite he found was in books, which offered him an escape and some semblance of joy.One day, while engrossed in the book 'Path of Heroes: Battle Against the End,' his life took an unexpected turn.Halfway through the story, he inexplicably found himself transmigrated into the world of Path of Heroes, inhabiting the body of Azriel Crimson—a character never mentioned in the story's first half.An extra.Someone seemingly irrelevant to the plot.Unfortunately—or perhaps fortunately—fate had other plans, and Leo soon discovered that being a mere extra was not his destiny after all.