

Ian Cowan transmigrates into a live-in son-in-law in a wealthy family,suffering his wife's infidelity and his in-laws' humiliation. At his lowest point, the "Wife-Spoiling System" awakens. However, Ian quickly discovers a system bug—married women other than his wife also qualify! He begins lavishly spending on every married woman except his cheating spouse. His mother-in-law, his rival's wife, businesswomen tycoons, underworld lady bosses, they all become targets of his "affection". The scorned son-in-law achieves an overnight reversal, tearing apart his unfaithful wife, crushing his enemies, and building his own commercial and social empire in the city.

Cyrus Campbell, originally the heir of the wealthy Campbell family, breaks with his family for his wife Sophia Smith and survives by delivering food for five years. Unexpectedly, Sophia Smith is vain and materialistic, influenced by her friend to develop an ambiguous relationship with her former lover, Simon Harrison. She even chooses to visit Simon’s grandmother who only has a cold, missing the final moments of Cyrus’s critically ill grandmother.