Taejung's Manga

I’m trying to find a manhwa where the main lead has some power to change his appearance.
I don’t remember much other than his handsome face it’s been long since I last read it
But he switches from white to black hair(if I’m not mistaken). The story is set in historical(those duke & duchess setting maybe)and he belonged to the higher class.

Ik my description cannot even be called as description but this is all I can remember but I’d be super grateful if you can help me find this manhwa
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