Yukimura injures his leg while the group is training for the upcoming tests. He later devises a plan for how the group should handle the marathon and then the day of the four tests arrives.

While Class C are discussing Karuizawa and Hirata's break up Yamauchi is approached by Sakayanagi from Class A. Horikita warns that it's a trap, but Yamauchi pays it no heed. Meanwhile, Horikita tells Ayanokoji that rumors are swirling around Ichinose.