She is the only female Jinwu Guard in Chang'an City, and she has been patrolling at night for twelve years, just to find out the cause of her father's death; he is the youngest divine judge in Dali Temple, and has solved countless strange cases, but he dared not open the file from twelve years ago. It wasn't until the former queen who had been dead for three years "returned" on the long street after curfew that they discovered that she had been pursuing the same old case for twelve years and he had been hiding it for twelve years.