Yes. Our kitchen is dedicated exclusively to rice flour. Wheat is never used or brought onto the premises. Every sweet we make is completely gluten-free.

• All ingredient information is available on our website.
• Allergen labelling covers the following 28 designated ingredients:
  [Shrimp · Crab · Wheat · Buckwheat · Egg · Dairy · Peanuts · Almonds · Abalone · Squid · Salmon roe · Oranges · Cashews · Kiwifruit · Beef · Walnuts · Sesame · Salmon · Mackerel · Soy · Chicken · Banana · Pork · Matsutake mushroom · Peach · Japanese yam · Apple · Gelatin]
• Among the 28 designated allergens, the following ingredients are never used or brought into our kitchen:
  [Shrimp · Crab · Wheat · Buckwheat · Peanuts · Abalone · Squid · Salmon roe · Beef · Salmon · Mackerel · Chicken · Matsutake mushroom]
• Beer and barley-based spirits are also never used or brought into our kitchen.
• Our kitchen does produce items using the following allergens from the 28 designated ingredients:
  [Egg · Dairy · Oranges · Cashews · Almonds · Kiwifruit · Walnuts · Sesame · Soy · Banana · Peach · Japanese yam · Apple · Gelatin]

All products, except those ordered with simple home-use packaging, are delivered in our dedicated gift box.Learn more

Every gift from C'est du nanan is wrapped by hand with heartfelt care — a tangible expression of thoughtfulness for someone dear.
Honouring the spirit of Japanese gift-giving tradition while embracing a contemporary sensibility, our wrapping is designed to harmonise with any occasion: quiet, refined, and gently attentive to the recipient.

Unless otherwise specified, orders are wrapped with a red-and-white katawa-musubi ribbon — a style suited to a wide range of celebrations, gestures of gratitude, and greetings.
It is equally appropriate for casual gifts and more formal occasions.

≪About the Katawa-musubi (片輪結び) ribbon≫
Traditionally used for wrapping cylindrical objects, this knot's symmetrical, skyward form evokes strength, forward momentum, and good fortune — and is a much-loved style.
While the katawa-musubi has long been used as a formal tie, its ease of unfastening and understated simplicity mean that some may consider it semi-formal. Please choose according to the occasion.
As with all gift-giving customs, the most fitting choice depends on your relationship with the recipient, regional traditions, generation, and personal beliefs — there is no single correct answer. Please feel free to consult us if you are unsure.

Please note that the specifications and appearance of our packaging are subject to change without prior notice.

Yes, reservations are available. For details, please contact us.

For details, please see [How to Enjoy Our Products]. The best-before date is indicated on the food label attached to the outer box or on the label on the side of the box. Please check it upon arrival.

We will do our best to accommodate your request, so please contact us before placing your order.
Please note that customised orders may require additional preparation time.

* If you would prefer to discuss your order by phone, please visit our contact page and share your name, phone number, and the best time to reach you.
A member of our team will get back to you shortly.

Some products differ between our online store and physical shop, and certain items may not be available depending on the season. We are committed to using natural ingredients and exceptional flavor, and every item is carefully handmade by our artisans.

As each item is handmade, the actual product may vary slightly from the images shown. For details about gift wrapping, please click here. Please note that colors, packaging, and materials may be changed without prior notice. Learn more about our environmental initiatives here.

Gift cards can be used for a variety of gifting occasions, such as birthdays, anniversaries, Christmas, Mother’s Day, and Father’s Day. They are a thoughtful way to show your appreciation and make a wonderful gift for anyone, as the recipient can choose exactly what they like.

You can check your gift card balance in the following ways: enter the code at checkout to see the remaining balance automatically, or use the link provided in the gift card email. If you lose your gift card, please first check the email address used at the time of purchase. If you still cannot find it, please contact us here.

Gift cards can be purchased through our online store in the same way as any other product.
If you enter the recipient's email address at checkout, the gift card will be sent to them automatically.
You may also have the gift card sent to your own email address and forward it to the recipient at a later time.

Gift cards are valid for three months. Please note the following: gift cards are valid for online store purchases only and cannot be used in physical stores; they cannot be combined with other discount codes or promotions; and they are non-refundable and cannot be exchanged for cash.

Gift cards can be used for purchases in our online store. When purchasing, you can enter the recipient’s email address and the gift card will be sent directly to them. The email includes the gift card code, the remaining balance, and the message entered by the sender. The balance can be used partially and any remaining amount can be applied to future purchases.

We sincerely apologize for the inconvenience. Please contact us here.

Orders are shipped as soon as they are ready. Please allow approximately 5-10 days from order placement to dispatch.

Delivery date requests are accepted for dates 7 days or more after the order date. If you need your order sooner, please contact us via the inquiry form before placing your order. We will do our best to accommodate your request.

If no delivery date is specified, your order will be delivered within the delivery window stated on the product page.

Please note that delivery may be delayed due to weather or traffic conditions.

During peak shipping periods such as mid-year and year-end gift seasons, Obon, and the New Year holidays, it may not be possible to specify a delivery date and time.

If you are unavailable at the requested delivery time and we are unable to contact you, or if the storage period expires, the package will be returned to our store. Due to the nature of our products, we are unable to offer refunds or reshipment in such cases.

Please check here for shipping rates.

• We are unable to accept cancellations or changes after an order has been placed. If you need to make any changes, please contact us as soon as possible.

• We are unable to accept cancellations or exchanges once your order has been dispatched. We appreciate your understanding.
  
• We take every care in the production of our products. However, if you receive an item with a defect, please contact us as soon as possible and we will arrange an exchange.

• As our products are perishable food items, we are unable to accept requests made more than one week after delivery. We appreciate your understanding.

We accept credit card payment and bank transfer.
If you choose bank transfer, your payment details will be sent after your order is confirmed.
Orders for which payment has not been received within 14 days of the order date will be automatically cancelled.
※ Express Checkout
If the delivery address and the billing address are the same, you may also pay via [Shop Pay], [Amazon Pay], or [Google Pay].

For the latest information, please check our official Instagram.

From Kamiyacho Station (Hibiya Line), take Exit 2 and head towards Azabudai Hills. It is a 4-minute walk. 　📌 View on Google Maps

Yes, reservations are available. For details, please contact us.

Sometimes, when you eat something truly delicious, it can feel as if your cheeks might fall off.

For bulk and corporate orders, we handle each enquiry individually — please get in touch via this form.
We also offer bespoke orders, branded stamping, and personalisation.