Controlling the Timeline from the Start, I Decide the Future!

The game lacks creativity, but the protagonist has some issues. His character is supposed to be a rich second-generation heir in his past life, but I don't see anything about him that makes him seem like one. First, he's ill-mannered, easily angered, and always complaining, unable to adapt or solve problems independently. Is this really a rich second-generation heir? Also, author, why did you even create a protagonist with a rich second-generation heir character? What's the point?

You absolutely have to give me a five-star review, so please don't disappoint me! This book is right up my alley.

Where is everyone? Maybe we should reincarnate? This one doesn't look too good either.