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Claudia Leitzya - I'm Not a Villainess!! Just Because I Can Control Darkness Doesn't Mean I'm a Bad Person!
Yumiella Dolkness - Villainess Level 99: I May Be the Hidden Boss But I'm Not the Demon Lord
Elizabeth Maxwell - I Got My Wish and Reincarnated as the Villainess (Last Boss)!
Reina Rubellite - I Became the Level 999 Demon King
Kay Jones - The Daughter of Evil and Miss Devil / The Villainess and Miss Demonlord
What exactly do you like about the ML/Seme Lee Sa-young?
I've seen enough other MLs or Semes with similar looks, personality, power, and social status as him trying to harm the FL or Uke and harassing or aggressively pursuing them until they gave in to their demands.
I'm sorry but I have zero tolerances for arrogant, entitled, manipulative Nobles, Royals, CEOs, Guildmasters etc., who use their privilege to bother and pressure their chosen love-interest.
Other examples:
7th Time Loop
Take Me Back Home
Traces of the Sun
I know this story is not for me and I accept your taste, but I think Cha Eui-jae deserves better.