男子愛上了一個控制狂，熱戀期他都甘心付出，一直到另一個女生出現，他才知道原來愛情可以這麼自由。男子在夢中許了一個「換女朋友」的願望，而願望居然成真了！這是幸福的開始？還是恐怖的到來？

A man falls in love with a control freak. He willingly obeys and gives his all during the infatuation stage of love. However, when another girl appears, he realizes that love can actually be liberating. In a dream, he is granted a wish for the exchange of girlfriends, and to his astonishment, the wish comes true in real life. Is this the beginning of happiness or the onset of new terror?