I Picked Him Up and Raised Him, and He Repaid Me by Imprisoning Me

I transmigrated into a pitiable, insignificant orphan from a grimdark novel that my friend would not stop talking about.It seems the original story hasn’t started yet, but I have absolutely no intention of getting involved in it.Because the male lead?
That bastard is a full-blown psychopath who worships the female lead as his savior—only to lock her in a cage and brainwash her at the end.Yeah. I’ll just live a long, quiet, low-profile life.But of course, this damn world transmigrates me as an orphan and hands me the power of a Sword Master.Well then. All the more reason to live carefully and for a long time.While wandering through an empire ravaged by war, I beat down a few knights who tried to assault me, made a decent sum of money, and along the way, I ended up saving a boy who looked like he was genuinely about to die.Since he couldn’t even remember his own name, I gave him one—Adele.
I gave him a place to sleep, fed him beef, and pampered him while raising him for three whole years.But that ungrateful brat disappeared without even saying thank you…“Adele?”
“Luisa, I’ve missed you.”Why are you coming back to me as the Emperor?“Luisa, you are my savior.”Why are you raising the imprisonment flags that were supposed to be for the female lead—on me instead?