Lin Nanzhi has a pair of special eyes, able to see the "bed partner red line" on everyone's body. She originally thought her husband Gu Yuan was the only exception in this world, until at the housewarming banquet, she saw that red line connecting to her best friend. Her husband cheated, her best friend betrayed, and even her son saw through the father's absence in repeated disappointments. She no longer endures, taking her child to move out of the old home, gathering evidence for divorce, recovering property, fighting for custody, and finding herself again from a place in utter ruins.