A collaboration campaign between the hugely popular YouTube channel “Water Challenge” and “7-Eleven” stores nationwide has been underway to great acclaim since 10:00 a.m. on Thursday, September 10, 2026.
If you purchase two eligible Meiji gummy candies at once, you’ll receive one free “original clear card” of your choice from a set of nine featuring the characters!
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・Running from 10:00 a.m. on Thursday, September 10, 2026, through Wednesday, September 23, at 7-Eleven stores nationwide
・Purchase any two eligible Meiji gummies at once (any combination) to receive one original clear card
・There are 9 types of clear cards in total, including “Sumana-sensei” and “Mr. Red,” with a limit of 20 cards per store on a first-come, first-served basis
・Eligible products include all 11 types of Meiji gummies, such as “Juice Gummies,” “Instant Energy Gummies,” and “Cola Up,” starting at 164.16 yen (tax included)
Water Challenge × 7-Eleven Campaign Details
To participate, simply take two eligible products and one clear card of your choice to the register.
Now running to great acclaim at 7-Eleven stores nationwide through Wednesday, September 23, 2026!
*The promotion will end once prizes run out.
*Start times may be delayed depending on store conditions.
Original Clear Cards
A fixed number of cards is available for each design, and distribution is limited to the first 20 customers at each store.
A total of 9 designs are available, including individual designs for all 8 members—such as Sumana-sensei and Mr. Red—plus a group design featuring the entire team!

“I’m Sorry, Teacher” (Limited to 3 per store, while supplies last)

Mr. Red (Limited to 2 per store, while supplies last)

Mr. Blue (Limited to 2 per store, while supplies last)

Mr. Black (Limited to 2 per store)

Mr. Money (First 2 per store)

Mr. Banana (First 2 per store)

Mr. Ginsan (Limited to the first 2 per store)

Mr. Baby (Limited to 2 per store, while supplies last)

Group Image (Limited to the first 3 cards per store)
*The individual card size is H90mm × W60mm, and the group card size is W90mm × H60mm.
*Please refrain from reselling these original promotional items.
Eligible Products
| Products | Price |
|---|---|
Meiji Fruit Juice Gummies – Grape |
152 yen* (excluding tax) / 164.16 yen (including tax) |
Meiji Juice Gummies: Satsuma Mandarin |
152 yen* (excl. tax) / 164.16 yen (incl. tax) |
Meiji Fruit Juice Gummies: Muscat |
152 yen* (excluding tax) / 164.16 yen (including tax) |
Meiji Fruit Juice Gummies – European Pear |
152 yen* (excl. tax) / 164.16 yen (incl. tax) |
Meiji Instant Energy Gummies |
199 yen* (excl. tax) / 214.92 yen (incl. tax) |
Meiji Cola Up |
242 yen* (excl. tax) / 261.36 yen (incl. tax) |
Meiji Ramune Up |
242 yen* (excluding tax) / 261.36 yen (including tax) |
Meiji Melon Soda Up |
242 yen* (excl. tax) / 261.36 yen (incl. tax) |
Meiji White Soda Up |
242 yen* (excl. tax) / 261.36 yen (incl. tax) |
Meiji Peach Soda Up |
199 yen* (excl. tax) / 214.92 yen (incl. tax) |
Meiji Poifull Pouch |
238 yen* (excluding tax) / 257.04 yen (including tax) |
*Please note that items may be out of stock or unavailable.
*Product names, prices, and packaging are subject to change.
*Items marked with an asterisk (*) are subject to the reduced tax rate.
Related Campaigns from Seven Print and Seven Net
Seven Print is scheduled to sell random bromides from Thursday, September 24, through October 31.
Additionally, Seven Net is scheduled to begin accepting orders for limited-edition merchandise starting Thursday, September 24!

Seven Print Random Bromide

Seven Net Exclusive Merchandise
The Water Challenge × 7-Eleven campaign is currently running through September 23!
| Official Website | Water Challenge × 7-Eleven Campaign Special Page |
|---|---|
| Participating Stores | 7-Eleven stores nationwide *Please note that items may be out of stock or unavailable at some locations. |
| Campaign Period | Thursday, September 10, 2026, 10:00 AM – Wednesday, September 23 *The campaign will end once prizes run out. |
| Eligible Products | Meiji Gummies (All 11 Varieties) Fruit Juice Gummies: Grape / Satsuma Mandarin / Muscat / European Pear; Instant Energy Gummies; Cola Up, Ramune Up, Melon Soda Up, White Soda Up, Peach Soda Up, Poifull Pouches |
| Prize | Water Challenge 7-Eleven Original Clear Cards (9 varieties total) |
| How to Participate | Present 2 eligible products (any combination) and 1 clear card of your choice to the register |
| Distribution Quantity | First 20 per store “I’m Sorry, Teacher” and “Gathering” are limited to the first 3 per store; the other 7 varieties are limited to the first 2 per store |
人気作品のキャラクターグッズ Anime Store.JP (アニスト) にて取扱中!
Water Challenge × 7-Eleven Campaign FAQs
When does the campaign run?
From 10:00 AM on Thursday, September 10, 2026, through Wednesday, September 23. The campaign will end once prizes run out.
Where will the campaign take place?
At 7-Eleven stores nationwide. Please note that some stores may be out of stock or may not carry these items.
How do I get a clear card?
Purchase any two eligible Meiji gummy candies at once (any combination), and you’ll receive one clear card of your choice!
How many types of clear cards are there?
There are 9 types in total, including “Sumani-sensei” and “Mr. Red.” Each store has a limit of 20 cards on a first-come, first-served basis, and the number of cards per design varies.
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かっこよすぎてすまない!9月10日(木)より セブン‐イレブンにて対象商品を同時に2個買うとオリジナルクリアカードが1枚貰える!今回限定のカラフルジャケットデザイン★
詳しくはこちら↓ URL https://t.co/4rxY2LQHUN pic.twitter.com/teaZ3EU1YG— ウォーターチャレンジ (@yuguro1) September 7, 2026
Please check the official website.
*Please note that the information in this article may be out of date. We apologize for the inconvenience, but please check the official website for the latest information.
©WaterChallenge2026

Meiji Fruit Juice Gummies – Grape
Meiji Juice Gummies: Satsuma Mandarin
Meiji Fruit Juice Gummies: Muscat
Meiji Fruit Juice Gummies – European Pear
Meiji Instant Energy Gummies
Meiji Cola Up
Meiji Ramune Up
Meiji Melon Soda Up
Meiji White Soda Up
Meiji Peach Soda Up
Meiji Poifull Pouch

















































































