With Kang Seulgi's crush on Son Seungwan growing larger and larger, she decides to confess her feelings. With her back turned against her, she makes a courageous confession. But when she opens her eyes and turns around, instead of Son Seungwan, she finds Bae Irene standing in front of her. Oops?! But the more shocking twist is that Irene, the school's most popular girl, mistakenly obliges and they decide to go out! What is Kang Seulgi supposed to do to fix this mess?