A wedding joke about a five-hundred-and-twenty penalty for being late was turned by husband Pei Zhi into icy rules imprisoning their marriage. After marriage, he treated Jiang Yu with harsh strictness, deducting living expenses for any delay, while showing endless tolerance and generous compensation to Yu Tang, with whom he had an ambiguous relationship for years. When her father suddenly fell gravely ill and Jiang Yu sought help in utter desperation, Pei Zhi still clung to the rules, prioritizing the other woman. In a heavy rain car accident, Jiang Yu suffered severe injuries, lost the child in her womb, and was struck by the massive blow of her father's passing. Losing her beloved family one after another, Jiang Yu completely lost hope and resolutely divorced him. By the time the tragedy was forged, Pei Zhi finally came to his senses, sparing no expense to make amends for his mistake.