10 minutes until the aquarium explodes!?
The World's Best Club, a group of five children each possessing a world-class talent, decides to visit a theme-park-style aquarium! They're having a blast with all the fun events, but chaos ensues when a criminal group targeting a 10 billion yen ransom plants a bomb in Japan's largest tank! To make matters worse, signal jamming has scattered Koichi and the others across the vast park...! Can the five of them work together to save 100 hostages!? Memo: Sorry this isn't related to the anime!!! I've read this entire novel series and I just love it! Also, even though it says "five people," I like the setting where Guest also has a world-class talent! The image quality is bad, so I'll change it after the 25th! Also, I couldn't find a picture of Kazuma at the aquarium, so I used a different one! Please bear with me...!!!
The world's greatest genius boy. A 6th grader. He has already read hundreds of thousands of books. However, three hours after waking up, he falls fast asleep!?
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In his hand are six tickets for a large theme-park aquarium, given to him by Mr. Hashimoto—the school librarian.
Mr. Hashimoto gave these to me earlier as a thank-you for helping out. They're free passes for a special opening. Do you all want to go together?
What! We can go!? That's so lucky!
Muttering quietly while looking up from the tickets
...Don't you want to go with your family or relatives?
Release Date 2026.10.19 / Last Updated 2026.10.21