Aeon Mall VTuber Shizuma Rei Gets Real Drink Collaboration at Kajū Kōbō Karin
The collaboration turns a running joke from Shizuma Rei's videos-calling Kajū Kōbō Karin a "water station"-into an official product, showing how VTuber catchphrases can drive real-world retail partnerships.
Reporting from 3 sources: MoguLive, Inside, PANORA.
Aeon Mall-affiliated VTuber Shizuma Rei is collaborating with fruit juice chain Kajū Kōbō Karin, a store she frequently calls a "water station" in her videos. The collaboration runs from June 1 to August 31, 2026, at 85 Kajū Kōbō Karin locations inside Aeon Malls nationwide. Three monthly rotating drinks-Toro Mango & Apple, Sparkling Orange & Lemon, and Goku Goku Grapefruit & Lemon-will be sold in special cups designed by Shizuma Rei. She participated in the trial production of the drinks. Customers who buy a collaboration drink receive one random limited-edition sticker from a set of five designs, including one secret design. Purchasing a Straight Watermelon Juice Ticket at eligible stores adds an original card featuring Shizuma Rei surrounded by watermelons. The project is part of Aeon Mall's "Super COOOOOOL Operation" summer campaign. Shizuma Rei, who started VTuber activities in July 2024, has over 110,000 YouTube subscribers as of May 2026 and is known for identifying Aeon Malls from partial images.
Shizuma Rei, a VTuber who specializes in exploring and identifying Aeon Malls from partial images, has been calling Kajū Kōbō Karin a "water station" in her "Aeon Mall Walking" series. The phrase became a social media trend, with fans visiting stores and posting photos with the tag. The three-way collaboration between Shizuma Rei, Aeon Mall, and Kajū Kōbō Karin formalizes that user-driven movement.
The collaboration drinks are priced at 540 yen for M size and 830 yen for L size, with takeout and eat-in variants. The five sticker designs include four showing Shizuma Rei enjoying the "water station" and one secret design. The original card for the Straight Watermelon Juice Ticket features Shizuma Rei with watermelons, with her profile and Aeon Mall information on the back. The ticket is sold at fruit juice bar stores nationwide starting June 1, but the card is only available at the 85 collaboration drink locations.
Kajū Kōbō Karin is operated by Aoki Fruits Co., Ltd., a company founded in 1924 as Fruit Shop Aoki. The chain runs 192 stores nationwide under multiple brand names, all making juice fresh after ordering. The collaboration runs through the summer, with each month offering a different drink flavor.
Synthesized by Yomimono from the 3 cited sources below, including Japanese-language reporting where cited, then editorially reviewed before publishing.