Space Rice Cake's first day of business is off to a roaring start, with its very first waiting line and orders pouring in nonstop! However, as exhaustion sets in, the Earth Arcaders push forward with a fiery tteokbokki challenge and an irresistible new menu. Meanwhile, Eun Ji and Yu Jin's 'frugal' grocery run takes an unexpected turn, leaving the main chef worried about their spending and the day's final sales total!

On the third business day, they sell the new menu item, potato cream tteoksagna. They plan to sell it for just five servings, but it becomes more popular than they expected, so it becomes a regular menu item at Space Rice Cake. Also, they have to serve a large group of 16 customers for dinner time. And they decide to serve the customers with a rice cake omakase course menu. They have to pull together and serve the course menu without any mistakes. But their plan seems to be ruined.