Taeyeon and Jessica were in a relationship. a happy one. but when the fateful day that Jessica had to leave SM arrives... the sad truth was that they had to break up. While walking around, trying to get her mind off Jessica, Kim Taeyeon went to buy her favourite drink- Koi Milk Tea. She then met a really cute cashier, by the name of Bae Irene. She started falling for Irene. But what would happen if Jessica returns? Who would Taeyeon chose? Bae Irene or Jessica Jung?