When she met him, she was an orphan who went to the capital to find her father. He was a gentle and elegant young prince. He gently lifted her up after losing her loved one on a snowy night. From then on, she went to Tianshan to learn martial arts and returned to Luo as a thief, all just to protect him. Even though time has passed, she and he are no longer the same as when they were young.
When she met him, she was a poor girl from a deserted village and a petty thief in the city. As a man who caught the eye, he wanted to educate her well and lead her back to the right path, but he never thought that he would be led further and further astray by her, and that a man would fall into the trap of a little girl.
But as he gets closer and closer, can the secret that she is the "Blood Swallow" he is pursuing be kept?
When the past events emerged one by one, and when the masks fell off layer by layer, she could only say one thing: "You are so kind, but I don't have a second life to make promises..."