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.
幼い頃、佐菜たちがよく遊びに行った桜乃社自然公園を潰して、そこに新しい市庁舎を建てようとする計画を知った朱里は、反対の署名活動を始める。しかし、学校内での署名活動が問題になり、朱里は校長室に呼び出されてしまう。一方、ボランティア活動で老人ホームに行った佐菜とあさみは、そこで知り合った老婦人からあることを頼まれて・・・。
