The second collaboration between the TV drama “Delicious School Lunch Season 4,” starring Hayato Ichihara, and Iwatsuka Confectionery’s “Kinako Mochi” has been announced.
“Kinako Mochi: Pineapple Flavor,” inspired by Okinawa—the setting of the drama—will be available for a limited time, and a giveaway campaign where customers can enter by purchasing eligible products will begin on October 1, 2026.
・“Kinako Mochi Pineapple Flavor,” inspired by Okinawa, is available for a limited time
・“Kinako Mochi” also comes in limited-edition collaboration packaging
・Campaign running from October 1 to December 20, 2026—enter with your receipt
・A total of 235 winners will receive prizes, including a script signed by Hayato Ichihara
Overview of the “Delicious School Lunch” × Iwatsuka Confectionery “Kinako Mochi” Second Collaboration
Following the collaboration with the 2025 movie “Delicious School Lunch: School Trip of Fire,” a second collaboration between Iwatsuka Confectionery’s “Kinako Mochi” and the drama “Delicious School Lunch Season 4” has been announced. This collaboration brings together the long-running bestseller “Kinako Mochi,” first released in 1982, and the school-based gourmet comedy set in a 1980s junior high school.
Since Season 4, which begins airing in October, is set in Okinawa, “Kinako Mochi Pineapple Flavor”—made with pineapple juice from Okinawa Prefecture—is available for a limited time.
©2026 “Delicious School Lunches” Production Committee
| Collaboration Products | 18-pack Pineapple-Flavored Kinako Mochi (Limited Time Offer)/19-pack Kinako Mochi (Limited Edition Collaboration Packaging) |
|---|---|
| Sales | Supermarkets nationwide, etc. (Shipments will begin sequentially) |
| Campaign Entry Period | October 1, 2026, 10:00 a.m. – December 20, 2026, 11:59 p.m. |
| Receipt Validity Period | October 1, 2026 – December 20, 2026 |
| How to Enter | Take a photo of your purchase receipt and submit it via LINE |
| Campaign Special Website | Iwatsuka Confectionery “Kinako Mochi” × Drama “Delicious School Lunch Season 4” Collaboration Campaign |
| Official X | @oishikyushoku |
Oishii Kyushoku × Iwatsuka Seika Kinako Mochi Eligible Products
The eligible products for this campaign are two varieties featuring collaboration packaging with lead actor Hayato Ichihara: “19-Piece Kinako Mochi” and “18-Piece Kinako Mochi (Pineapple Flavor).”
©2026 “Delicious School Lunches” Production Committee
18 pieces: Pineapple-Flavored Kinako Mochi
This limited-time flavor features “Kinako Mochi” with a sweet-and-sour twist, made using pineapple powder derived from pineapple juice grown in Okinawa Prefecture. The light, crisp, and melt-in-your-mouth texture is complemented by an elegant sweetness. It has been available nationwide for a limited time since September 21, 2026, with a suggested retail price of around 260 yen (tax included).
19 Pieces: Kinako Mochi
These rice crackers feature a blend of aromatic kinako and Wasanbon sugar, offering a fluffy, spreading sweetness and a gentle melt-in-your-mouth texture. They are available for a limited time in special collaboration packaging with “Delicious School Lunch Season 4.”
*“Kinako Mochi Pineapple Flavor” has a non-printed price (suggested retail price)
*Will be shipped sequentially to supermarkets and confectionery sections nationwide
“Delicious School Lunch” × Iwatsuka Seika Kinako Mochi Giveaway Campaign
Submit a photo of your receipt showing the purchase of one or more eligible products via LINE for a chance to win “Delicious School Lunch” original merchandise and other prizes—a total of 235 winners will be selected by lottery. The lineup includes prizes that fans will love, such as Mr. Amari’s “Hidehira-style” My Chopsticks, which also appear in the school lunch scenes.
Prize A: Script signed by Hayato Ichihara (5 winners)
Prize B: Mr. Amarida’s Hidehira-style “My Chopsticks” (30 winners)
Prize C: Iwatsuka Confectionery × Delicious School Lunch Acrylic Keychain (100 winners)
Prize D: Iwatsuka Confectionery Assorted Product Set (100 winners)
*Photos and illustrations are for illustrative purposes only
How to Enter the “Delicious School Lunches” × Iwatsuka Confectionery Kinako Mochi Campaign
Entries must be submitted via Iwatsuka Confectionery’s official LINE account. You may enter as many times as you like, but each person may win only once.
| Step 1 | Take a photo of proof of purchase (receipt, invoice, billing statement, purchase details, etc.) that meets the entry requirements (purchase of at least one eligible product) |
|---|---|
| Step 2 | Add the Iwatsuka Seika Official LINE Account as a friend |
| Step 3 | Tap the “Let’s Go! Enter the Campaign!” button in the menu at the bottom of the chat screen |
| Step 4 | Return to the chat screen and tap the “Let’s Go! Enter the Campaign!” button again from the bottom menu |
| Step 5 | Follow the on-screen instructions to select your desired prize, submit a photo of your receipt, and complete your entry |
*Take a photo that clearly shows the store name, date and time of purchase, the name of the eligible product, the price of the eligible product, and the quantity of the eligible product
* If you purchased the item online or from a location other than a physical store, take a photo of your receipt, delivery slip, or purchase details.
*If you paid by credit card, black out your card information before taking the photo.
*Only one entry per submission will be accepted; even if you submit a receipt covering two or more items, it will count as a single entry.
* Receipt images that are difficult to read—such as those that are blurry or have shadows—may be deemed invalid
* For inquiries, please contact the “Kinako Mochi” × Drama “Delicious School Lunch Season 4” Collaboration Campaign Secretariat (info@iwatsuka-oishi-kyushoku2026.com/ Weekdays 10:00 AM–5:00 PM, until February 26, 2027)
“Delicious School Lunch” × Iwatsuka Confectionery Kinako Mochi Frequently Asked Questions
What is the campaign period?
The entry period runs from 10:00 AM on October 1, 2026, to 11:59 PM on December 20, 2026. Receipts are valid from October 1 to December 20.
What products are eligible?
“19-Piece Kinako Mochi” and “18-Piece Kinako Mochi (Pineapple Flavor).” You can enter with a receipt showing a purchase of one or more of these products.
How do I enter?
Take a photo of your purchase receipt, add Iwatsuka Seika’s official LINE account as a friend, and enter via the menu in the chat screen.
What are the prizes?
Prize A: Script signed by Hayato Ichihara (5 winners); Prize B: “Hidehira-style” My Chopsticks by Professor Amarida (30 winners); Prize C: Iwatsuka Seika × Delicious School Lunch Acrylic Keychain (100 winners); Prize D: Iwatsuka Seika Product Assortment (100 winners).
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Please check the official website for details.
*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 details.
©2026 “Delicious School Lunches” Production Committee
