My Rival and I Traveled Across Time to Work on Infrastructure Together

Yannuo was still battling wits with his mortal enemy, but when his eyes darkened, he realized that he had changed places. There are knights, magic, legendary and terrifying dragons, and beautiful elves here. He also has a magical system! Here is a brand new sea of ​​stars! Waiting for him to conquer, Yannuo roared to the sky. The next second, the giant bear-like man picked him up with one hand: Ollie, my child, what are you screaming about? Well, he is still just a twelve-year-old kid, and the biggest dilemma in his life right now is how to get his baron father to take a bath. Purpose: Shuangwen