Youjin resolves to pursue a master's degree in robotics and asks Minjae for help, but Minjae considers it a reckless choice. To make matters worse, his leg begins showing signs of trouble. While touring the lab thanks to Minjae's lab partners, Youjin causes a major accident. Overwhelmed by anxiety that he has desperately tried to suppress, Minjae finally snaps. Despite his strong opposition, Youjin becomes captivated by the world of robotics. Can Youjin successfully make her way into the robotics lab?