When Kim Minseok wakes up in a hospital, he's stunned to find two handsome men both claiming to be his lovers. Dismissing it as a prank, he prepares to leave, only to see an unfamiliar face in the mirror. Minseok is now in the body of Seo Hayoon, an evident two-timing schemer. Who was Seo Hayoon, and how did Minseok end up in his body? More importantly, how will he navigate this tangled web of relationships?