Sienna faces a formal challenge when investors and colleagues demand proof of her Sundara degree and ask her in Sundarese to explain her nanocapsule project's materials, prospects, and expected revenue. She answers haltingly, naming duplex steel as the material, but stumbles linguistically; critics count numerous grammar mistakes and accuse her credentials of being fake. Sienna insists she spoke in a Sundarese dialect, yet others on the call, including Mr. Rajesh, also fail to understand her. The session ends unresolved, her academic credibility still questioned and the call still open.