Shy Guy Macho Girl

From RockinKOREA:

A man named Seha Song grew up hearing that he was feminine from a young age, while a woman named Bada Pi grew up being told that she was masculine since she was a child. These two, who have images opposite to their genders, have grown up receiving anxious attention. Upon the entrance to the university, Seha Song and Bada Pi decide to live in a way that matches the gender, which the society expects them to be. They try to meet up with the standards of others.
This is a self-seeking healing romance story of feminine man Seha Song and manly woman Bada Pi, who resist to be in line with the standards demanded by society.

Pre-serialization

Original Webtoon:
KakaoPage, Bomtoon, MrBlue, Naver Series,
Onestory, Nate, Qtoon, BookCube