Did I Make a Mistake When I Was Reincarnated as a Villain?

(Light novel + Western magical world + time travel + non-brainless + protagonist's perspective) (Not a brainless article!!!) Traveling back to the game world I once played, I became Alan, the good-for-nothing young master of the Duke's family. When I woke up, I found myself lying on the bed, and what flashed through my mind was the memory of the future protagonist of the game - the red-haired boy Ren who was bullied by me. I discovered that it was still ten years before the game started, and Renn had already dropped out of the academy! My original plan to apologize and repair the relationship fell through, and the only thing I relied on in this world was the "strategy" in my mind about the game's progress and skills. This is a more real and cruel world than the game. I must grow up quickly and use every advantage to fight my way out of this aristocratic academy and other world full of intrigues and dangers, and get rid of the destined ending of death!