The Guy with Pretty Lips

Roha, Hanbi's younger brother's friend and also her first kiss from ten years ago, one day comes back into her life as a perfectly grown man. With his pretty lips, he starts to seduce her with pretty words, breaking her boundaries and shaking her up all over again. Can they be friends again, or is one of them about to cross the line a second time?

(Source: Webtoon Entertainment)