This volume was way more intense than all the previous ones. I've always said that Spy Classroom wasn't a series for anyone looking for something super serious, and honestly, that was never a problem for me. The characters' comic relief has always been something I enjoyed, and one of the reasons I decided to keep reading. That said, I couldn't put this volume down. Volume 6 already ended on a huge cliffhanger, and this one had really great pacing. I can't wait for volume 8.