Reborn! My Wife Is the Female Emperor

Right off the bat, I’m being told to pursue an unparalleled female emperor. What a joke! With more than twenty extra years of life under my belt, this should be a piece of cake. Wait, let me look up how to pursue someone first. The protagonist is reborn and returns, growing stronger as he pursues the female emperor. (The blurb doesn’t do it justice, so read the story.)