The Spy's Concubine Wants to Change Her Ways

In her previous life, she was an arrogant agent killer, cold-blooded and ruthless, and always took revenge on every enemy. During a mission, she died tragically due to betrayal by her comrades... When she woke up, she became the meanest concubine daughter in the prime minister's palace. Her father didn't care for her, her wife didn't like her, and she had a sister who wanted her life at any time. She even found a husband for her. Since she wants to be reborn, she must follow her own way and trample under her feet all those who have tried to bully her. In this life, she turned open guns into hidden arrows to fight for power with the women in the house; in this life, she turned iron and blood into perseverance to protect the love of her life. "When I don't want to marry you, you can't touch a hair on my head; when I want to marry you, you can't like other people!" Even though she was born as a concubine, she would never accept it. The arrogant, independent and ruthless general, Bai Liangang finally turned into a soft and gentle person, "If you are willing, I promise you to keep the case together for the rest of your life." [The plot is fictitious, please do not imitate]