Mr. Kim, the man who claims to be Gwang Tae's biological father, keeps contacting Ki Jin. The man agrees to a DNA test to prove that what he's saying is true. Meanwhile, Gwang Nam and Byun Ho keep lying and sneaking around as they go through IVF treatment. Also, Ye Seul works hard to get ready for his audition. However, he gets a phone call that Dol Se has collapsed.