Baojun De Fan Chuanyue Da Lianmeng

The Heavenly Black Bird descended, giving rise to the Great Shang. Emperor Xin, the descendant of the Black Bird, ascended as the ruler of the Great Shang, shouldering its destiny. He mastered martial arts effortlessly and conquered the world swiftly. However, just as Emperor Xin conquered Xiqi, feeling accomplished and even a little bored, he suddenly found himself transported to the modern world—he had time-traveled! Discovering a startling fact, he realized he was a character from a novel in this world! (Source: Webnovel)