The System Forces Me to Become Empress

After casually complaining about a terrible novel, I somehow transmigrated into that very story, where women rule over men. Not only had I become a third princess destined to die young, but just when I thought I could take it easy, I got bound to a System and forced to become an empress. From then on, my life was all about redeeming the wicked supporting female characters. But you thought that was the end of it?