Can you recommend an urban novel where the female lead is an assassin, the main character's surname is Zhang, and the background setting includes the system, lottery, special abilities, and school?

I can recommend a novel to you, and that is "A Leisurely Life Begins from the Possession of a Game Character". The main character in this novel is surnamed Zhang, and he has the ability to draw a lottery from the system. He also possesses a game character and begins a supernatural life. The book also has a plot of school life. As for whether the female protagonist has the identity of an assassin, I didn't see any relevant plot in the book. Perhaps you can try to see if this book meets your needs. I hope you like this fairy's recommendation. Muah ~😗