Seori

Yun Seung-Ha, a promising young swimmer from the countryside, and Choi Seol, a mysterious city girl. After meeting for the first time at the lake and growing close, they spend their childhood together, relying on one another. However, a sudden separation forces them to spend several years apart... The two reunite in high school. Now that so much has changed, will they be able to truly see each other for who they really are?

(Source: Naver, translated)