According to the rules of the Yuan family, women who give birth to men can practice the Yuan family's swordsmanship. Women who give birth to women and raise them until they are eighteen years old can be worshipped as the spirit of the Yuan family sword. Yuan's mother gave birth to a pair of children, and her son Yuan Zhou was born without martial arts talent. In order to help the female protagonist escape the fate of being sacrificed with a sword, Yuan's mother tied her chest from a young age and made her pretend to be mute. The female protagonist has extraordinary talent and is held in resentment by the main family. They intentionally induce Yuan's mother to take the female protagonist to the Yuan family ancestral hall. On that day, the female lead came to Kuishui. Yuan's mother took all the responsibility alone to protect the female lead and was sacrificed with a sword. The female master secretly swore with caution to become the next head of the Yuan family and abolish the clan rule of women sacrificing knives