Reincarnated Noble: Foreseeing His Own Death at the Beginning

Reborn as the most incompetent young master of a border noble family, he has no system or golden fingers, only a crumbling family and a troubled world that is about to be ignited by the flames of war. He brought back a dying girl from the slave market, started from an abandoned manor, and rebuilt his own power in the midst of the conflict between empires - but is it really that simple? "Reincarnation? Haha, it turns out to be rebirth." It was not until five years later that Felton finally understood his mission while in the sea of fire. At that time, his legend had just begun. (The book is a bit slow to read, please forgive me)