Even if you're pregnant, it's no reason to marry someone's boyfriend behind her back.
And will Kang Se Ra and Daniel just stand by and let Gun and Mi Young deal with the situation in their own way? Lying is unacceptable, and Anna should get to make the choice whether she can accept him being someone else's legal husband and 'taking care' of another woman.
The stories then intertwine when Sae-byuk meets the Kim's extended family and the son of a big interior design company, Lohas, in Korea.