Three Girls Three Boys

Original Webtoon:
Naver Webtoon, Naver Series
At a high school where boys and girls are attached, 'Jung Dal-sae', a boy's high school student, has a crush on 'Kana', a neat girl's high school student. 'Jung Dal-sae' goes out with her close friends and waits for an opportunity to get to know Na-yeon. Then one day, I hear the voice of a female student who is swearing in a cool way... Oh my God, the identity of the female student is 'Gana'!?