Sayori: "Oh? What kind of file?" Monika: "It was titled 'Festival Surprise' and I have no idea how it got there. It had an interesting description though. It said that it was a surprise activity for the festival, but it didn't specify what it was exactly." Natsuki: "That sounds suspicious. Maybe someone else from the school put it there?" Yuri: "It could be a prank, but it could also be something exciting. We should investigate and see if we can find any clues." Sayori: "I'm curious too! Let's all work together and try to solve this mystery. Maybe it's a clue for a scavenger hunt or a surprise performance." Monika: "That sounds like a great idea, Sayori. We can divide into teams and search around the school for any signs or hints about this surprise." Natsuki: "But we should also make sure to continue planning for the festival. We don't want to neglect our responsibilities." Yuri: "You're right, Natsuki. Let's allocate some time for the mystery investigation and then focus on the festival preparations." Monika: "I'm glad to see everyone's enthusiasm. This could turn out to be an unforgettable festival if we can uncover this surprise and also showcase our literary talents." Sayori: "I can't wait to see what the surprise is. It's like a mini adventure within the festival itself." Natsuki: "Well, let's get started then. We should gather some supplies and split into teams to begin our investigation." Yuri: "I have a feeling that this surprise is going to be a memorable addition to the festival." Monika: "Indeed. Let's make this festival the best one yet!" (And so, the club members embark on their dual mission: planning for the festival while unraveling the mystery of the surprise file. Together, they navigate the school, follow clues, and embrace the excitement of the unknown.)