Makeover / glow-up / bad past fetish

Ok idk how to explain this but it’s something I’ve had since childhood. I am a woman and I always had a thing for seeing or making unattractive cartoon / anime characters become attractive. This also includes their personality. I get a bit aroused by the idea of characters overcoming a bad past (either suffering misfortune/abuse or being a bad/evil person) and seeing how it psychologically affects them and/or how they develop into a better person. Is this normal or just some form of sadism