Synopsis：Childhood friends Haeseong and Jiwoon spend nearly all their time together at the pool. One day, Haeseong accidentally catches sight of an unexpectedly impressive part of Jiwoon’s body, and his emotions begin to shift in ways he can’t explain. What he thought was pure friendship slowly starts to change, leading him to even break off his romantic relationship. As crossed expectations and growing misunderstandings pile up, their bond becomes increasingly tangled, leaving them wavering on the fragile line between friendship and love.