Eodikkaji Gwaenchana?

After a painful breakup with her first love, Eunpyeong returns to campus still haunted by the past and burdened by a secret fantasy she’s afraid to reveal. When Nyeok, a younger guy, discovers her secret by chance, he responds with unexpected acceptance. Their bond deepens, but complications arise when another girl enters the picture, and Eunpyeong learns Nyeok has been denying their relationship. What will become of their romance, trust, and life on campus?

(Source: WEBTOON)