The most classic ones are blood-red I am a Rogue, I am a Rogue (Yang Wei) and The Way to Ascend the Dragon (such a classic book need not be introduced), as well as How Bad Men Are Made (Xie Wendong) and Always Mixed in the Underworld (Tian). . Forget the protagonist), "Fallen Youth" (Xu San), "Gangster College Students"

There is also:

Mafia special forces!

Prison dragon!

Mafia nova!

Mafia boy!

20 years in the underworld! I'm looking at this.

These are quite classic! It may not be interesting at first.

But seeing the ending will make your blood boil,

I hope you like the book I recommended,

Focus on the underworld for 20 years,

This book has taught me a lot,

I hope you can read it, my friend.