Due to Sana and Nanaka's work as classroom representatives, their sensei, Yuzuki Fujimura frequently gives them caramels, causing Sana to remember an incident in a youth when a younger Yuzuki gave him a caramel. Meanwhile, Syuri attempts to gather signatures for a project to stop the building of a new town hall over the nature center. The school's administration forbids Syuri to continue. At her home, her father, the one who proposed the construction, angrily berates Syuri, who flees home. At the retirement home, Sana and Asami continue to help there, and fulfill a request by an elder lady to bury a package on a hill. However, Asami trips and Nanaka comes upon Sana and Asami accidentally embracing each other.

Sana visits Asami in the hospital, where Asami reveals that she was the one who sent the anonymous letter claiming that Syuri and Syusuke were in a love hotel. She admits that ever since Syuri rejected her for expressing her feelings towards Syuri, Asami has constantly hated her. When Syuri and Syusuke arrive to visit Asami, she acts normally, although she asks Syuri to converse privately with her. Syuri later runs out of the hospital in tears. The following day, Syuri and Syusuke are absent from school, and Sana realizes that they are running away to avoid being separated. He desperately runs after their train, and reminiscent of Syusuke when Sana left town, Sana yells that they will always be friends, and Syusuke and Syuri erupt in tears.