Taeyeon slept the night before her wedding day. She woke and lived a single woman, and her partner a mere attractive stranger.

Taeyeon knows she is not hallucinating. She's going to marry Tiffany tomorrow, finally tying their bond in place together forever. So why is it that, on the next day, she finds herself and Tiffany out of love? The more confusing question is, why does she feel like the time and place are right? Again and again, they fall in and out of love, never getting past the point of being together. And the more she thinks about it, the more she concludes there is definitely something wrong. Whether fate or destiny ceases to exist between them, Taeyeon has to find a way to make her love fall for her again.