Reincarnation at the Beginning: from One Emperor Through the Ages to the King of All Worlds

What should I do if I am reincarnated into a small world that I visited in my previous life? Of course to hug the thigh! What? I am the thigh of the future, so that's okay. In this case, it is up to me to rewrite the future of this world. Unify the Central Plains? No, I want to rule the world! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.