Doing It With My Crush's Younger Brother

A romance about childhood friends, mutual pining, and physical chemistry comes first. Lim Jiu and Go Jaejun have been inseparable friends since kindergarten. While they seem like ordinary friends to everyone else, Jaejun has secretly harbored a crush on Jiu for a long time. One day, Jiu, who falls in love easily, confesses to Jaejun that she has a crush on his older brother. Upon hearing this, Jaejun makes a provocative proposal: 'My brother likes unusual things and sexy women. I’ll teach you how to be his type.' The two set off on a threeday trip to learn these 'unusual things,' where Jiu discovers a side of Jaejun she never could have imagined. 'It’s too big! Is this even human?!' Original Webtoon: Naver Series, Ridibooks, Lezhin, MrBlue, BookCube