I, the King of Time and Space! Titled Night Emperor Gaowu

Have you ever thought that beneath a planet full of sin, there are some weird families that live on "flesh and blood"? Have you ever thought that in an ancient civilization, the Star Emperor used the power of the stars to slaughter tens of millions of people on the entire planet! After this battle, the Star Emperor became famous, and legends spread among the people that he would pick the stars with the sun and moon in his hands and slaughter tens of millions of people in the world! What kind of story will the combination of the Sword of Dawn and the Night create in this capital of judgment?