Everyone decides to go to the summer festival to have fun, however Yuki must remain behind because she failed her final exam.  Saki and Nodoka agree to stay back and help Yuki, however she is having a bit of trouble concentrating. During the same time, the Ryumonbuchi, Kazekoshi and Tsuruga clubs, each received a letter from Hisa...
"Cat, I have placed a stone weight on the lid so it can't be opened."
أيتها القطّة، وضعتُ حجراً على الغطاء"
"لذا لا يمكن أن يُفتَح
"Gato, he puesto algo en la tapa
para que no se pueda abrir".
« Chat,
"Gatto, ho messo una pietra sul coperchio
 così che tu non possa aprirlo".
"Gato, eu coloquei uma
pedra pesada sobre a tampa,