Taro happens to remember an old classmate of his named Wakabayashi Kiyomi who was teased back in grade school. He asks both his friend Saegusa and Reiko about her, but they don't remember much about her either. Then Reiko, who asks some of her other friends about her, finds out that Kiyomi led a pretty harsh life and that Taro, Saegusa and Reiko all played a part in that back in grade school. Meanwhile the gang begins to question Taro and Reiko's relationship.
太郎(オダギリジョー)は、唐突に小学生時代にクラスメートだった清美(黒川芽以)のことを思い出す。そして、三枝(勝地涼)と共に、清美が授業中に木工用ボンドを食べていた事でクラス中からからかわれていたことを思い返す。そんな中、礼子(尾野真千子)はママ友から清美の中学時代の話を聞き驚く。