Lotus of the Firmament

The top agent of modern Earth, the “Night Owl,” was a master of both poison and medicine. After being betrayed by her organization, her soul transmigrated into a cultivation world. Her original body was the legitimate daughter of the Luo family, which was affiliated with the Lingyun Sect. Born with a useless physique that made cultivation impossible, she was bullied relentlessly before her cousin pushed her into a freezing pool and drowned her.