The students are upset about a violent assault that occurred during the class trip. A powerful allyship gives Su-ji hope. Su-ji acts on her plan to take down Ha-rin.

The big day has arrived. Issues develop between Su-ji and her friends. A winning move is made against Ha-rin. The public learns about the Pyramid Game. Ha-rin finally contacts Ja-eun.

Su-ji and her classmates make a final attempt to return to normal life and a safer environment. Ha-rin and Ja-eun's history is revealed.