The Billionaire of Xihong City: A Legend of Lavish Spending tells the absurd story of Zhu Yiqun, goalkeeper for Xihong City's amateur soccer team.
Down on his luck, Zhu Yiqun unexpectedly inherits a three-hundred-billion-yuan fortune from a distant uncle, but he must meet a challenge: legally spend one billion yuan within a month without retaining any assets. Meanwhile, the Spendthrift System binds itself to him, launching this hilarious journey of extravagant spending.
From walking into a luxury car dealership and buying forty expensive cars to give away for free, to purchasing Wencheng Castle and throwing an absurd party costing over a hundred million yuan, Zhu Yiqun's spending infuriates Xia Rou, a senior accountant at Global Wealth Management. The two begin as adversaries, but soon find themselves drawn into each other's lives. He also buys Xihong City's worst soccer team, the Fat Face team. At first, he plans to make them lose on purpose to fulfill the System's mission, but after learning about the team's past, he changes his mind and resolves to help them win fairly for once. This triggers the System's punishment, freezing some of his funds, but earns him the players' trust and changes Xia Rou's opinion of him.
During this time, Xihong City faces an apocalyptic crisis when a meteor strikes. Zhu Yiqun turns Wencheng Castle into a shelter to protect the survivors, and his relationship with Xia Rou grows closer. Once the crisis is over, he successfully confesses his love to Xia Rou and inherits the entire fortune.
In the end, Zhu Yiqun establishes a charity foundation to use his wealth to help others, and builds an ordinary but happy life with Xia Rou. He transforms from an insecure coward into a bold, confident man, and learns that true wealth lies in the people by his side.
