When I Returned to the Sui Dynasty, I Became Yang Guang

A 21st century special forces king accidentally transported his soul to the Sui Dynasty thousands of years ago during a mission and became a young man named Yang Guang. Step by step crisis, step by step growth, from a weak king to a generation of emperor! Arrogant? Watch me conquer the surrounding countries. What a great success? Watch me dredge rivers and canals and connect north and south traffic. Extravagant and lustful? But they are all beauties who have a crush on me! In Gu's world, Gu himself has the final say!