After breaking the contract,that genius husband went mad

Poor girl Leah from the slums ends up having a one-night stand with Cain, the head of a mafia family, and surprisingly becomes pregnant with quadruplets. When her greedy adoptive parents force her to marry a sick old man, Cain swoops in with his security team and rescues her. After moving into the Blackwood estate, Leah, with Cain's extreme favoritism and her mother-in-law Victoria's protection, rises from a humble cleaner to the respected matriarch of the mafia family. As her mysterious past unfolds, Leah turns out to be the long-lost true daughter of the Lockwood family, missing for fifteen years, and the one who pushed her off a cliff back then was actually her adopted sister who had been impersonating her for years. With Cain's support, Leah reunites with her biological mother, settles old scores, and ultimately wears the wedding ring, becoming the rightful lady of the Blackwood family.