Hae-na finds out that Seo-won is afraid of dogs. It complicates things as she has to get a kiss from him while she’s changed to a dog. The vice principal brings his dog to work, making Seo-won panic. Hae-na secretly helps Seo-won so that no one finds out about his secret fear of dogs. Meanwhile, Yul witnesses Hae-na transforming into a dog.