Meet Jihyun, a freshman who moves to Seoul and finds himself intrigued by Jaewon, a senior he meets at work. Joining the university surf club, Jihyun hopes to catch Jaewon's attention. Will he ride the waves to love or wipe out?
On their first surfing trip, Jaewon coaches Jihyun, coaxing him out of his shell. But Eunji's presence puts Jaewon on edge. Then, a boozy night cements a connection between Jaewon and Ji-hyun
After a brief moment of connection, Jaewon bolts, leaving Jihyun confused. Back on land, Ji-hyun is unsure about his feelings until a chance encounter with Jaewon brings them closer.
While collaborating on a project, Eunji spots Jihyun's growing bond with Jaewon. Visiting Jihyun's workplace, she sparks a fight, until he finds solace in Jaewon.
Surf club dinner gets messy: Jaewon gets drunk, and Jihyun takes him home, where he is faced with his past grief. Only the ocean and Jihyun can soothe Jaewon's turmoil.
Jaewon finds calm with Jihyun by his side, as they bare their souls and explore the coast. But as the sky darkens, the waves rise, and Jaewon's past looms, threatening to take Jihyun away.
After the surfing club loses university approval, Jaewon lashes out at Taehyung. Eunji seizes the opportunity to edge closer. Jihyun returns to normal life, but can't shake his feelings for Jaewon.