This book tells the story of a "princess" who grew up in a prestigious family, cherished by her loved ones. After being bullied by her peers, she happens upon the other half destined for her. His words give her the strength to stand back up, and the two promise to meet again at the place where they first met, sixteen years later. From then on, she falls in love with him. For his sake, she takes up both literature and martial arts, striving to become strong enough to protect herself. She sees all the conflicts and injustices of the underworld and turns them into the drive she needs to survive. Twelve years later, as a grown woman, she reforms her gang and leaves the underworld, actively searching for him. Without knowing that she is the little girl he met twelve years ago, he falls in love with her. At last, the sixteen-year promise comes due, but his words once again leave her caught in a dilemma. Was she really wrong? Were all the efforts she made for him over the years truly for nothing? Faced with this situation, what will she choose: to carry on or to give up?