

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.

When deliveryman Ken accidentally saves mafia boss Elle, she falls for him instantly and begins a relentless pursuit. Caught in schemes by his fiancée Susan’s family, Ken faces chaos—including a wedding hijacked by Elle. Later, a plot causes Ken to lose his memory, and with further schemes from the Capone family, he and Elle must overcome danger and conspiracies to reclaim their love and happiness.