The Road to Sunset Conquest

What would you do if you were the dictator of a space empire? Fighting in the vast starry sky? Enslaving other alien races? Can all alien races be made into cans? Or... Realize the unification of the galaxy? Xu Zhang, who has truly traveled through time, said that if you really think so, it is too small and the layout is too small. How can the mere unification of the Milky Way satisfy Xu Zhang? What he wants is the unification of the entire universe!