A Martial Arts Grandmaster Reborn in High School: Making Up for Past Regrets

In his previous life, Tang Yi was a martial arts master, but he was destitute before he made a name for himself. His family was destroyed because of his dedication to martial arts. Reborn, he returns to high school, where he takes on not only martial arts but also business and the underworld. Well, whatever, it's all about a satisfying power fantasy, so just enjoy the ride. You don't need to think too hard while reading.

And then there's the girl who died because of him.