'Ah, this dream again.' A dream where she gets thoroughly devoured by Dogeon, her first and last boyfriend who broke up with her 7 years ago. On days she has this dream, her luck is terrible all day long. But she never expected it to be this terrible... Her roommate Juhee left a text message saying she's going on an overseas trip. To summarize: Juhee signed Sehyun up as a cast member for a dating reality show called 'With You,' and if she doesn't participate, the penalty is 10 million won. And the filming starts today! Arriving at the set against her will. Among the many contestants, a familiar yet unfamiliar silhouette loomed larger in Sehyun's view. Shim Dogeon, why on earth are you here?!