After the death of her brother Cao Ruoxuan, she lived in her cousin's house. Soon after, her twin sister was found. Because her sister was jealous of her having a happy childhood, she teamed up with Princess Jin and bought Cao Ruoxue.
Ren Yazi bought it to the Khitan, but later Brother Yelvxiu snatched it and entered it into the Beiyuan Palace. Brother Yelvxiu took her as his concubine.