Jianghu con man Su Changan was sentenced to be beheaded for impersonating a divine doctor. Right at the execution ground, he turned danger into safety through a bout of bluffing and awakened the Bluffing System. Carrying a piece of imperial jade pendant he accidentally acquired, he attracted the Eldest Princess to investigate and was mistaken for the missing orphan of the Great Xia. Hurrying all the way to the capital, Su Changan encountered Liu Ruyan, the daughter of the wealthiest merchant, coming to demand the three million taels that had been swindled away. Relying on business predictions that hit the mark by blind luck, he turned the tables around. Just as everyone was gossiping about his identity, the bells of the imperial palace rang, and the emperor issued an imperial decree summoning him, concluding that Su Changan was none other than the little prince who had been missing for ten years. The mystery of the true and false princes thus begins.