My Assassin Brother Wants to Break Up, So I Marry His Archrival in a Fury

[Assassin + equally matched leads + palace intrigue + revenge + ill-fated romance + princess consort + empress + princess of a fallen kingdom] After three years of entanglement, one day, after a night of passion, Yun Yi urged her third senior brother, Lie Yun, to marry her at once. As an unmarried woman, she couldn't keep sneaking around with him like this. She wanted to be together openly. Unexpectedly, Lie Yun stammered that he didn't want to marry a ruthless killer who didn't hesitate to take lives. He wanted to marry Lu Yuyan, the gentle and charming daughter of Lord Lu. Furious, Yun Yi drew her sword and went to castrate her third senior brother, Lie Yun... When Yun Yi returned to her sect, she learned that her eldest senior brother, the God of War prince, had come back from the battlefield. Her second senior sister, Yun Shang, was fawning over the prince, making him drink cup after cup. Only after returning to his room did the prince realize Yun Shang had drugged him. Shamelessly, she then ran into his room and clung to him. But the only person in his heart was always his junior sister, Yun Yi. So he sealed Yun Shang's acupoints and staggered into Yun Yi's boudoir. “Junior sister, help me...”