Whoa, I've Transmigrated into a Good-for-Nothing Young Master

Zhang Yu, a wealthy playboy from Country A, had just graduated from the prestigious Xinghe University when he plunged headfirst into a life of excess. One wild night, he tore along a winding mountain road with his mistress in the passenger seat. Fueled by alcohol and excitement, he completely lost control of the wheel. In an instant, the car went berserk like a wild horse, crashing into the roadside guardrail. The impact blacked out Zhang Yu’s vision, and the world plunged into endless darkness. When he opened his eyes, he found he had transmigrated to a parallel dynasty, the Ba Yu Kingdom. As luck would have it, the body he had taken over shared his name and surname: he was the useless fourth son of the down-and-out Zhang family in the capital. Using modern knowledge, he changes his fate, meets the empress, helps her secure her realm and expand its borders, and establishes a legacy for the ages.