The name of a martial arts novel

In 2006, he had read the beginning of a Germinal supplement. It was about three main characters. The first main character that left a deep impression on him was with his grandfather at the beginning. His grandfather used a gun and was a peerless expert. Later on, he died after fighting someone and left the gun to his grandson. He also told some things about the other two main characters. Later on, they were taken in by a mysterious organization. It was like they were studying and living in the same place as a school. Who knew what the title of the book was? Because it had been a long time. So I give you 50 points. I hope everyone can help. Thank you.
Not that Nine Regions Ethereal Record. If it's good, there will be extra points. Thank you.
Although the plot is a little old, I feel sad that I didn't see the end. Everyone, try your best to help.

Answer 1

I can't answer your question directly because I don't have any information about the novel you mentioned. However, if you can provide the name of the novel or more specific information, I can try to help you find relevant resources.