The Color of a Woman (컬러 오브 우먼)

A drama that contrasts a woman who succeeds with knowledge and reason and a woman who weaponizes appearance and sensitivity.

Byun So Ra (Yoon So Yi) comes from an ordinary background, but she works very hard. She is then betrayed by her boyfriend and her dreams of becoming a professor fails. Byun So Ra then joins a cosmetics company and she also meets a rival with whom she clashes in this cosmetics company.

Yoon Joon Soo (Jae Hee) is a good looking, smart, and talented chaebol, as he's the head of this cosmetics company.

(Source: DramaWiki)