The concubine Tang Yunzhi was poisoned by her eldest sister Tang Xirou because she was born with a sword bone. She was saved from death by Yun Ruowei, the senior sister of the tenth peak of Wenjian Sect. She changed her surname to Yun and became the favored junior sister of the entire peak. The senior sister protects her, but the third senior brother Shen Huaizhou, who is cold-faced and jealous, gives her a hairpin late at night. The senior brothers show their talents and pamper her to heaven. She appears to be well-behaved, but in reality she is decisive in killing. She defeats powerful enemies in a sect sword competition, slaps Tang Xirou in the face, and coldly rejects her brother's acquaintance. While fighting side by side with Shen Huaizhou, feelings arose secretly, and the jade hairpin confirmed their love. However, the evil red fox Xiu Feng Luo Bai appears, and the shocking secret surrounding his biological mother Wan Yan is slowly revealed.
