Childhood friends, Yongsun and Moonbyul follow different paths when Yongsun gets married at the age of 25. However, two years later she is pregnant and facing divorce and Moonbyul returns to her life to help.

The two women become business partners and little Stella, Yongsun's daughter, has a very strong link with her adopted aunt.But she wants something peculiar.

Meanwhile, everybody sees Moonbyul and Yongsun as a couple, except the two of them.