On one side is His Majesty who intends to abolish the crown prince, and on the other is the powerful Prime Minister. This is a dead end for the prince and princess who have no real power. However, His Majesty's sudden death has changed the situation drastically, because the young Marquis of Wuchang rushed back from the border and stood at the border. On one side of her, she grew up with her, but she thought everything was an exchange of interests... On the other side, a short-lived revenge heroine with a blood feud carried a sword and vowed to seek justice for her family, but she never expected to encounter a "dog" standing in the way.
Intention: Strengthen yourself and save yourself