Lin Wanyan, the third young daughter-in-law of the Zhou family, superficially loves buying bags and swiping black cards, but actually holds mineral resources, a high-end material supply chain, and family asset arrangements. The Zhou family is pressured by Gao Jian joining forces with external capital, resulting in tight funds and blocked core component supplies. With her sharp insight, Lin Wanyan sees through the forgery, negotiates the Kailong cooperation, invests heavily to support key technology R&D, and helps the Zhou family get through the difficulties. Her husband Zhou Zhiyu has always protected her and also secretly grown up, finally taking over the group. When the household management card is handed to her, she snaps it on the spot, continues to recklessly swipe her black card to buy and buy, and wins her career and the family's sincere heart with the trump card in her shopping cart.