A Crayon Shin-chan mystery-solving event starts today at Marine World Uminonakamichi!  
 TERRA NOVA Co., Ltd. Press release: October 29, 2025 To Members of the Press A Crayon Shin-chan mystery-solving event is being held at Marine World Uminonakamichi starting today! The main characters from the popular anime “Crayon Shin-chan” have come to the aquarium as aquatic creatures! Solve the many mysteries and codes and put a stop to the ambitions of a suspicious man! 
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https://real.uminazo.jp/shinchan/osakana-project/ ■Event overview A real-life mystery-solving event featuring the main characters of the popular anime “Crayon Shin-chan,” “The Mystery of the Kasukabe Defense Force and the Human Fish Plan,” will be held at the Marine World Uminonakamichi aquarium in Fukuoka Prefecture from Wednesday, October 29, 2025, to Sunday, March 1, 2026. This hands-on event, where participants are challenged to solve mysteries at an aquarium, will be held for the first time in the Kyushu region. During the event, various collaboration goods will be on sale, and you can fully experience the world of “Crayon Shin-chan” through special explanatory panels and decorations, familiar background music, and Shin-chan’s original voice. The costumes of Shin-chan and the other five members of the Kasukabe Defense Force were designed specifically for this event and feature popular creatures from “Marine World,” such as the grey nurse shark and the finless porpoise. New characters original to the game also appear in the mystery-solving story! We will take on the mystery of the “Human Fish Plan” devised by the genius scientist Sakana Mamoru, who loves aquatic creatures.
https://prcdn.freetls.fastly.net/release_image/69223/26/69223-26-74a3d065bf3edefab3af1502a884bc9b-3900×1845.png Original designs of the Kasukabe Defense Force created specifically for “Marine World Uminonakamichi” and new characters original to this work This event can be enjoyed by children and adults alike, but the puzzle-solving questions are serious! Using clue panels installed throughout the venue, participants will use their knowledge of the ecology and characteristics of aquatic creatures to solve the mystery. In the second half of the story, participants will consider the various anomalies and problems occurring in the aquatic world, including the oceans and rivers, as they take on the final mission. Through solving the mystery, participants can learn about aquatic creatures and environmental issues in a fun and natural way. Because the aquarium is also an educational institution, we aimed to create a full-fledged mystery-solving event that allows participants to both play and learn. At the same time, the usual “Shin-chan-like” interactions are still present. Enjoy the hilarious story unfolding with the unique members of the Kasukabe Defense Force. Event Period Wednesday, October 29, 2025 – Sunday, March 1, 2026 Location Marine World Uminonakamichi Address: 18-28 Nishitozaki, Higashi-ku, Fukuoka City, Fukuoka Prefecture, 811-0321 TEL: 092-603-0400 Official website:https://marine-world.jp/ Puzzle Participation Fee 800 yen (tax included) *This is the sales price for the puzzle kit. Aquarium admission fees apply separately. ★Click here for a discounted advance ticket set that includes admission and a puzzle-solving kit
https://www.asoview.com/channel/ticket/cU9EAQDOzk/ticket0000044574/ Clearance Bonus Original can badges (7 types in total) *One will be distributed randomly per puzzle kit. Other – There is no limit on the number of participants. You can enjoy the experience alone or with a group. – There is no time limit. You can participate at any time during opening hours, and you can even participate over multiple days. However, please note that if the aquarium reopens at a later date, a new admission fee to the aquarium will be charged. ・The estimated time required is approximately one hour, but this may vary from person to person. ■How to Participate 1. Purchase a puzzle kit at the souvenir shop inside the aquarium. 2. Solve the puzzle by searching for clue panels around the aquarium. 3. Once you find the answer to the puzzle, open the key box to continue solving the mystery. 4. Once you’ve solved all the mysteries, get an original tin badge! [※] ※The original tin badge given as a clear bonus will be distributed randomly, one per mystery solving kit.
https://prcdn.freetls.fastly.net/release_image/69223/26/69223-26-ce5d53d15d3263f9d2757ee5dbe39110-1200×730.png “Puzzle solving kit” sold at aquariums
https://prcdn.freetls.fastly.net/release_image/69223/26/69223-26-6875cd87d0704d3f596364b24a773f66-1200×730.png “Knowledge Panel” will be specially exhibited during the event.
https://prcdn.freetls.fastly.net/release_image/69223/26/69223-26-9e5781afac37c7a4d3b598db14a8b269-1200×730.png There are also plenty of photo spots, including character panels!
https://prcdn.freetls.fastly.net/release_image/69223/26/69223-26-ca71640319ea5183de4e0dd352a2f15f-997×660.png “Original tin badge” (7 types) as a clear bonus *Images are for illustrative purposes only. ■Original Goods Information A variety of original goods will be on sale during the event.
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https://prcdn.freetls.fastly.net/release_image/69223/26/69223-26-fc9de9dd9b05e32aab55f14fadf43e39-620×620.png ★Many more in the works! 【Greeting Event】
https://prcdn.freetls.fastly.net/release_image/69223/26/69223-26-5da06acbeb1cc194a9a470c8f695daa1-1700×1700.png Shinn-chan is coming to Marine World Uminonakamichi! Enjoy Marine World with Shin-chan! Date: November 3, 2025 (Monday holiday) Time: 1.11:00~, 2.12:30~ 3.14:00~ Location: Near the entrance, etc.
https://prcdn.freetls.fastly.net/release_image/69223/26/69223-26-c1312092e7ca0da732dd56a2919187a2-1690×1689.png What is “Crayon Shin-chan”? A slapstick comedy centered around the extremely laid-back “storm-bringing 5-year-old” Nohara Shinnosuke and his family. The latest film, “Crayon Shin-chan the Movie: Super Magnificent! Burning Kasukabe Dancers,” is currently a huge hit! The original comic, “New Crayon Shin-chan,” is being serialized on “Manga Crayon Shin-chan.com,” and the TV anime is being broadcast every Saturday from 4:30 PM on TV Asahi. Contact for inquiries regarding this press release Contact: TERRA NOVA Co., Ltd. Public Relations Department 03-6261-0377 (Weekdays 10:00-17:00)
https://terra-nova.co.jp/ If you have any questions or requests regarding the contents of this release, please feel free to contact us at the address above. We also accept on-site interviews at the event venue. We are also currently looking for aquariums that would like to host this event. Please contact us for more information. Planning and Production: TERRA NOVA Co., Ltd. (C) Yoshito Usui/Futabasha, Shin-ei, TV Asahi, ADK (C)TERRA NOVA INC.