Let's Have Some Natural Brotherhood in the Male Channel. the Male Protagonist Should Not Be Soft and Stupid. No Heroine

I want to read a book like "Pure Newbie, Why Isn't This Game Difficult (The Player Has No Response)". It's easier to beat. The male protagonist is smart and bold, and has his own goals. He has a brother who helps him. The most important thing is the plot. Let's do some CP by the way.