Su Ruanruan is a good-for-nothing junior sister of Qingxuan Peak. She was punished by cutting down a spiritual tree for peeping at her senior brother Lu Chenzhou taking a bath, and accidentally fell into the retreat cave of Demon Lord Yan Wuchen. Yan Wuchen was seriously injured and on the verge of death, so he forced her to sign a soul contract on the condition of "extending her life through dual cultivation." Su Ruanruan was forced to agree in order to survive, but unexpectedly gave birth to a demon seed during the dual cultivation.
