"I don't believe that just one time will suffice." "Hey, mmm..." National swimmer, Moon Tae-gyeom, harbors a secret regarding his remarkable return after an extended decline. The catalyst for his finally breaking through his stagnant record is his friend of two decades, Yoo Seo-hae. Each time he sleeps with Seo-hae, his performance enhances as if by magic. Initially, it was solely about the records. However, he soon finds himself irritated by every single guy in her vicinity. "Yoo Seo-hae's body is mine, yet there are far too many jerks attempting to lay claim to it." ...Are we truly just friends?