Kamiusagi Rope tsuka, Natsuyasumi Rasuichi tte Maji ssuka!?

It is the last day of summer vacation, and Rope and Akira are determined to squeeze as much fun as possible out of it. Their plan is already in trouble because Akira has barely started his summer research assignment and also has to deal with a problem involving his older sister's earrings.

A simple day downtown grows far more exciting when the pair become entangled in a robbery. With unfinished homework, personal errands, and an actual crime colliding at once, Rope and Akira race through their familiar neighborhood on a final summer adventure that becomes much bigger than either expected.