Fang Yuan is publicly scorned by his fiancée, Liu Ruyan, for being poor. He watches helplessly as she gets into the luxury car of a rich second-generation heir, leaving him deeply humiliated. But after unexpectedly becoming bound to a spending system, he receives a black card with a daily limit of one trillion, which automatically refreshes every day. Every purchase also earns him points. He first helps Wang Jiaojiao, his fiancée's best friend, pay for her younger brother's treatment. Then he spends lavishly on properties and precious treasures, delivering a crushing comeback against his ex-fiancée and the wealthy heir. Thus begins his extraordinary journey from rags to riches.