The next morning, while the Sōbu High School group is having breakfast, Shizuka explains the final days events. They need to prepare a bonfire as well as a special "test of courage" scare quest for the elementary children.
After building the bonfire stack, Hachiman heads to the river to cool off, only to find everyone else already there. He is amazed at seeing Yui and Yukino in summer swimwear. While watching everyone from the riverbank, Hachiman is joined by Rumi, Yukino and Yui and they further discuss Rumi's issue of making friends. Afterwards, Hachiman resolves to do something about Rumi's issue during the "test of courage".
Later, as the Sōbu High group prepares for the "test of courage", Hachiman tells everyone his plan. It involves shattering the current relationship between the group of girls who shun Rumi, so they can make new bonds. During the "test of courage" instead of being monsters to scare Rumi's group, Hayato, Yumiko and Kakeru pretend to bully them, while presenting them the option of choosing three victims to stay. The girls unanimously decide on Rumi as the first, then fight among themselves for the remaining two. However, in a surprising turn of events, Rumi uses her camera to blind Hayato's group and helps the other girls escape.
Afterwards, at the bonfire, even though nothing seems to have changed, Shizuka and Yukino praise Hachiman for his idea in their own way. Hayato also expresses his amazement of Hachiman, and wonders if he Yukino and Hachiman could have been friends if they were in the same middle school.
The next day, as the Sōbu High group gets ready to leave, Yukino's sister Haruno shows up in a black limousine to pick Yukino up. After a bit of casual teasing by Haruno to Hachiman and Yui, mentions to Yukino that their mother is waiting. Yukino with a pained expression, leaves with Haruno. As the limousine drives away Yui recognizes it as the one that hit Hachiman when he saved her dog. Although Hachiman pretends that he cannot remember, when internally he does, while also expressing that they didn't see Yukino for the remainder of the Summer break.
- Hachiman learns that the limo, Yukino leaves in is the very same one that struck him on his first day of high school.