Su Tang, an ancient descendant of Nuwa, once rescued the dying scholar Pei Yan after he fell off a cliff six years ago. She sacrificed her innate inner elixir and repeatedly extracted blood from her heart to help him rise through the ranks until he became the prime minister of the empire. Concealing her divine heritage, she willingly lived as an ordinary wife. But blinded by vanity, Pei Yan believed the lies of the scheming Liu Ruyan and mistook her pretended acts of care for the life-saving kindness that had saved him.