Tae-hyun and you had been together for 6 months, and you two loved each other dearly. But his mother dislike you and forced him to marry a different woman obviously he refused but his mother forced him too. And you two never saw each other again. Until you found out that you were pregnant with his child and you wanted to tell him but he moved to another city and lost contact of you. So for 3 years you've been taking care of your daughter yoon-jin mina. And posting updates on your social media.

Back too present day your daughter is sleeping in your bed. You both lived in a small apartment but life was simple. Until some reason Mina started crying.