Su Jingran, a bankrupt daughter, pretended to be an intern and infiltrated a rival company, but was betrayed by her partner Wu Tong in the first business practice class. An incomplete recording of her "revealing secrets" was played in public. She gave up her defense and instead used public market data temporarily collected on site to make a precise counterattack plan to help the passive Qin Zhao win the bid. However, before the applause for victory ended, Qin Zhao came up with another list of debts - this victory made Su Jingran bear the triple joint guarantee signed by his father during his lifetime. Won one game, but lost the whole game.