The Demon Concubine System, but There Is a Lot of Construction Work [Comprehensive]

Su Xiayin traveled to all dynasties in real history to be a demon concubine, and bound to the demon concubine system to complete the task conscientiously. Get close to the traitor (the scientist who is about to be burned to death) Daxing Civil Engineering (construction of water conservancy projects) A beauty is a source of trouble and a vixen confuses her (but the enemy's emperor) Su Xiayin: Just tell me whether I have finished it or not. System: No, wait a moment? Is the country's strength getting stronger and stronger instead of losing its inheritance? ? ? System anger: You are truly the worst demon concubine I have ever seen! ! Su Xiayin smiled: But I am an excellent Chinese. Intention: Know people well and rejuvenate the country with clever plans.