From KENAZ:
Minho dated a tall girl in high school. The girl told Minho that he doesn’t appeal to her as a man because he’s too short. Since then, Minho hated tall girls. One day, Minam Han, a tall and slow-witted girl, appears in front of him. At first, Minho hates her, but little by little, he is attracted to Minam. However, Minam introduces Hyerin to Minho.

Original Webtoon