I Am Unrivaled in the Martial World

On the day I was married, my husband never came to our bridal chamber. Instead, he took his cousin, Xu, as his concubine. To make her niece's love affair with her son come true, my mother-in-law poisoned me little by little. When Xu fell into the pond, she falsely accused me of pushing her in. My husband slapped me and threatened to divorce me. I drew the soft sword hidden at my waist and cut off one of my husband's arms. Then I shoved Xu's head underwater seven times. My mother-in-law called me a wretch and ordered the servants to drag me to the ancestral hall. I planted my foot on her face and ground it into the floor three times. My father-in-law brought the household guards to seize me. I broke the guards' legs and stabbed out my father-in-law's eyes. Before this, no one knew that I, the daughter of a respectable family, had once studied under a notorious martial arts demon when I was young. The demon was determined to drain my life essence to break through to a higher level. But I secretly cultivated my own power. The day I surpassed my master, I killed him instead. Now my secret is out! I'm done being a noblewoman. I want to live another way. For example, ride through the martial world and do some more righteous deeds~ Notice: Updates will be irregular starting in January. I'll try to finish before March~~ Reading guide: 1. The blurb is in first person, while the story itself is in third person. 2. The heroine doesn't engage in household infighting. She's exceptionally skilled in martial arts and becomes a top expert as soon as she enters the martial world. 3. Both leads are each other's first and only partners. The heroine is an Alpha and the hero is an Omega. The hero is not the husband mentioned in the blurb. Theme: A happy life is something you have to fight for yourself.