As Bo Young comes out of the orphanage, finally comes out of the orphanage after 10 years of being stuck ever since she was born. Her parents left her, that was the only information that the people in the orphanage told her. She despised her parents at the exact moment when they told her that. She certainly didn't expect it.
Back to the point; she had no idea who adopted her, she once heard that the people who adopted her were someone they did not expect, but she wasn't sure. Bo Young didn't know that she would be at that place, she didn't know that she would be doing all those vigorous training, she didn't know that she would go through all that excessive missions but what she didn't know was that she was a step ahead of finding her parents. Along the way, she goes through odd suspicions and she find's her feelings not trustable anymore. And the future, only she can fix it at what dangerous things lies ahead.

-I can't seem to trust anyone even though I've known them for decades.-Park Bo Young

-I wish that she can have full trust on me.-Kim Tae Hyung