While she is alone, Masumi Fujita questions her ability to compete. Meanwhile, Nonoka decides to cheer on Konomi, Jun, and Sayo.

Jun reminisces about how she was loner thanks to her love of climbing. At the competition, Konomi attempts to use her analytic skills to solve Problem D.

Sayo injures her middle finger during the semi-finals. When she takes on Problem D, she gets the crowd to rally behind her, which motivates her. Once the semi-finals are over with, it is revealed who have reached the finals.