The richest person Su Yunlan tracks down her long-lost daughter Su Qing, and seeing her suffer from PUA and endless torture in her in-laws' family, she disguises herself as a cleaner to go undercover in the Gu family. Su Yunlan secretly guides Su Qing to awaken and resist, uncovering the truth about her son-in-law's azoospermia. Su Qing breaks free from the cage of marriage and her career rises, Su Yunlan reveals her identity as the richest person, and the evil Gu family ultimately ends up in miserable failure.