The morning after Ji Ho kissed a total stranger, she wakes up to find out that her new housemate whom she thought was a woman is actually a man. Rather than the fact that they kissed, Ji Ho and Se Hee are sad that they can't live under the same roof as they are opposite genders.

Se Hee and Ji Ho decide to get married, so naturally, Ji Ho introduces her boyfriend to her family. Se Hee must impress Ji Ho's patriarchal father in order to get his approval. Meanwhile, Won Seok tries to make up with Ho Rang by getting her the sofa she wanted.