What is my 1000-year-old monster self to do when I’ve failed my immortal ascension? Time travel — accidentally — and wind up back in my 9-year-old body, needing to re-cultivate, of course. But after that? Get REVENGE! Muahahahaha! 

But the idiot who killed me — also accidentally — was the main character of the dumb harem Xianxia I transmigrated into. But wait. Wasn’t he only 7 or 8 at this point in time? Well, since I can’t harm a child or the main character without suffering in some way, then I’ll just have to raise him better, faster, stronger, and loyal! Muahahahaha!

Catherine Foundling has a plan.

She'll join the Legions of Terror that occupy her homeland and work her way up the ladder until she can effect the kind of changes the former Kingdom of Callow so badly needs. Yet after a night gone from bad to worse she is offered a once-in-a-lifetime opportunity by the right hand of the Empress, the infamous Black Knight: to become his apprentice and learn the business of villainy from one of the most dangerous men in Creation. It’s probably a trap, but when has that ever stopped her? For the sake of the land of her birth, she is more than willing to get her hands dirty. They say the first step on the path to the Tower is the hardest.

Considering the amount of people already trying to kill her, ‘they’ might have a point.