Byung-ye and Dohyun are second-year mechanical students in the skills program at Busan Technical High School. They devote themselves to practice day and night, determined to win a medal at the National Skills Competition — because only then do they even stand a chance of applying to a major corporation. Will they achieve the result they’ve been working toward? And if not, what choices will be left to them? In a classroom that resembles a factory, anxious yet hopeful days go by.