I'm Practicing! Want Me to Bind the Gangster System?

Hahaha! Mine! Mine! Mine! It's all mine! What a treasure! What resources! What an opportunity! ... Everything is mine! Not convinced? Come and hit me! ... Of course, I did not snatch these things from you, they were all obtained in a serious manner! If you don't believe it? Then pretend I didn't say it. The introduction is too weak, please move to the main text! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.