Starring Wooyeon and Lee Jin-Woo in lead roles, the limited web series tells the story of a fan-fiction writer, Kim Yeo-Joo.

Nam Joo-hyuk (Noh Hee-chan), who is bored with his life with Jo Yeon-ji (Kim Jin-ah), thinks of Yeo Joo-yeon (Joonie) from whom he broke up 5 years ago. "If only I had caught Joo-yeon that day..