Other people's practice is called "working hard" at best, but she calls it "fighting hard", because if you don't work hard, you will die.
She practiced martial arts desperately for revenge, but watching the world of gratification and grudges for a long time made her have more and more questions: Is the only way to stop killing by killing? How to judge whether a person should be killed? What should I do if I kill the wrong person?
This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.