Event Details Decided! Collaboration Event with "Kozame-chan," Popular on SNS and YouTube, Starts at Aqua World Oarai from May 14th (Thursday)!

Aqua World Ibaraki Oarai Aquarium (Aqua World Oarai), which boasts "Japan's No. 1 in shark species" (as of December 2025, according to our research among member facilities of domestic aquarium organizations), is undertaking various initiatives to show customers a new side of the aquarium, under the tagline "Now, a New World!". This time, a collaboration event with the anime "Odekake Kozame" and Aqua World Oarai will be held from May 14th (Thursday) to July 13th (Monday). (※)Applicable to member facilities of domestic aquarium organizations (as of December 2025, according to our research) See details The hugely popular anime "Odekake Kozame," which originated on SNS, is collaborating with Aqua World Oarai again! In addition to a special collaboration exhibition with original commentary panels, visitors can learn about the ecology of living creatures while having fun, such as a stamp rally that takes you around various parts of the aquarium with Kozame-chan and friends. There will also be plenty of limited photo spots featuring the cute characters from "Odekake Kozame." Furthermore, you can enjoy original limited-edition goods and food for this event. This event is perfect for outings and can be enjoyed by the whole family during this season. Special Collaboration Exhibition: Kozame-chan and Mysterious Creatures Original collaboration design commentary panels will be installed in the "Interesting Creatures" tank on the 3rd floor of the aquarium. Let's learn about creatures with interesting ecologies, such as "fish that are almost transparent" and "shrimp that change gender," while having fun with Kozame-chan and friends. Threadfin Cardinalfish Toyama Shrimp Clownfish Pottbelly Seahorse "Interesting Creatures" tank in the Eternal Sea Zone on the 3rd floor of the aquarium Purple Hagfish, Toyama Shrimp, Hokkai Shrimp, Akashima Octopus (tentative name), Red King Crab, Striped Catshark, Pottbelly Seahorse, Regal Angelfish, Clownfish, Threadfin Cardinalfish, Goatfish, etc. ※Exhibited creatures may change depending on their condition. Stamp Rally: "Kozame-chan and Aquarium Friends" A stamp rally will be held where you can tour the aquarium with Kozame-chan while collecting stamps. If you collect all the stamps using the hints in the rally book, you will receive a "Pukupuku Kozame-chan Sticker" at the general information desk! Rally Book Cover Novelty "Pukupuku Kozame-chan Sticker" 500 yen (tax included) Purchase a ticket at the ticket vending machine opposite the general information desk on the 3rd floor of the aquarium, then exchange the ticket for a rally book at the general information desk. Once you have collected all the stamps, bring the rally book to the general information desk. You will receive one sheet of the novelty "Pukupuku Kozame-chan Sticker." ※One "Pukupuku Kozame-chan Sticker" per person. ※The rally book and "Pukupuku Kozame-chan Sticker" will be available while supplies last. Limited Collaboration Menu The Relax Cafe "Mermaid" will sell a limited collaboration menu. Please enjoy the many dishes that can only be tasted at this event. Kozame-chan's Delicious SEA Napolitan 1,280 yen (tax included) Kozame-chan's Chilly Pancake 800 yen (tax included) Kozame-chan's Blue Sky Pine Drink 650 yen (tax included) Kozame-chan's Jiggly SEA Pine Drink 650 yen (tax included) Kozame-chan's Delicious SEA Napolitan, Kozame-chan's Chilly Pancake Kozame-chan's Blue Sky Pine Drink, Kozame-chan's Jiggly SEA Pine Drink Relax Cafe "Mermaid" on the 3rd floor of the aquarium ※Please note that product stock is limited. ※Information on sold-out items and restocks will be updated on the "News" section of our website. Limited Collaboration Goods Limited collaboration goods that can only be obtained at Aqua World Oarai will appear. Please stop by the Souvenir Shop "Moramora." Munyugurumi Mascot (Otter) 2,800 yen (tax included) Munyugurumi Mascot (Jellyfish) 2,800 yen (tax included) Eco Bag 2,420 yen (tax included) Sagara Embroidery Drawstring Pouch 2,310 yen (tax included) Clear Bottle 2,200 yen (tax included) Ring Notebook 1,320 yen (tax included) Mini Towel (3 types) 990 yen (tax included) Clear File 880 yen (tax included) Acrylic Block (6 types) 660 yen (tax included) Sticker Set A, B (each) 660 yen (tax included) Acrylic Keychain (3 types) 550 yen (tax included) Can Badge (6 random types) 440 yen (tax included) Munyugurumi Mascot (Otter), Munyugurumi Mascot (Jellyfish) Sagara Embroidery Drawstring Pouch, Ring Notebook For other goods, click here