CHIKYU Launches 'Earth NASA Randoseru® Summer Randosaku Support Campaign 2027'!

Golden Week Campaign Announcement

CHIKYU Co., Ltd. (Minato-ku, Tokyo; CEO: Yasuo Tsujitani), a company specializing in the planning and sales of randoseru (school backpacks), is launching a limited-time 'Earth NASA Randoseru® Summer Randosaku Support Campaign 2027' for families considering randoseru for spring 2027入学.

Special benefits are available for visiting showrooms or making purchases through showrooms and the official website. Please take advantage of this campaign during summer outings or while selecting randoseru at home!

【Campaign Period】

July 17, 2026 (Fri) – August 30, 2026 (Sun)

*Please check individual SNS accounts and the official website for showroom business days.

【Tokyo Aoyama Showroom (SR) Benefits】

① Visit Benefit

Visit the CHIKYU Tokyo Aoyama Showroom during the campaign period and receive a 'Decoration Fan' craft kit on the spot!

This DIY kit allows you to draw, stick stickers, and create your own one-of-a-kind original fan.

Enjoy a fun, workshop-style hands-on experience at the special space inside the showroom! Challenge yourself to create a memorable summer keepsake.

*You may also take it home and assemble it there.

② Purchase Benefit

Additionally, receive a CHIKYU original randoseru cover as a gift when purchasing a randoseru at the CHIKYU Tokyo Aoyama Showroom during the campaign period!

【Official Website Benefit】

Distribute a free coupon for the CHIKYU original randoseru cover, usable when purchasing a randoseru body and cover simultaneously!

Coupon Code: 2027summerCK

【How to Use the Coupon Code】

⑴ Add both the randoseru body and randoseru cover to your cart ⑵ Enter the coupon code on the cart screen ⑶ Click 'Apply Coupon' ⑷ The randoseru cover will be applied for free (100% OFF)

【Eligible Products】

① Tokyo Aoyama Showroom: Purchase any randoseru body of your choice

② Official Website: Purchase any randoseru body + one of the following items simultaneously

・CHIKYU Randoseru Cover (L), all colors (Gray, Navy) — Regular price ¥3,300 (tax included) ・CHIKYU Randoseru Cover (M), all colors (Gray, Navy) — Regular price ¥3,190 (tax included)

Please check each product page to confirm the compatible cover size. YOLO comes with one dedicated cover included. Using the coupon makes the second cover free.

Cover Sales Page Here

【Important Notes】

・The coupon is only valid on the official website. ・The coupon cannot be used in conjunction with certain other coupons. ・The showroom visit benefit ends once supplies run out. ・The coupon cannot be used for standalone randoseru covers or rental randoseru. ・Randoseru covers will be shipped together with the randoseru body upon delivery.

Summer vacation is finally here! We’ve prepared special gifts to help your entire family enjoy randoseru selection (Randosaku).

At our showroom, you can try on the full lineup of CHIKYU randoseru to experience their comfort. Additionally, pop-up exhibitions and order events will be held this summer at bookstores and department stores nationwide.

For those who want grandparents to join but have scheduling conflicts, we also recommend our 'Randoseru Rental Service'.

Rental Service Here

Please consider CHIKYU randoseru this season.

We sincerely look forward to your visit and patronage.

*No reservation is required for showroom visits*

Tokyo Aoyama Showroom

Tokyo Aoyama Showroom

*Aoyama Showroom does not require reservations

*You may need to wait during busy periods

Address: FROM-1st 1F, 5-3-10 Minami-Aoyama, Minato-ku, Tokyo

Business Hours: 10:00–17:00

Access: 5-minute walk from A5 exit of Omotesando Station (subway), towards Roppongi

【New Release】Earth NASA Randoseru® COSMOS FILLES (Cosmos Fille)

Model No.: KF-N01

Price including tax: ¥68,000 / Price excluding tax: ¥74,800

Gusset width: 12.5cm Weight: approx. 1,010g

Main material: Clarino F

Color options: Lilac × Pearl Lavender / Pink Beige × Pearl Beige / Carmine

In Greek, 'cosmos' means 'harmonious universe,' and its flower language is 'a girl's sincere heart.'

This lightweight randoseru is designed to represent a young girl harmonizing with everything she encounters, blooming gently and beautifully.

The two colors, Lilac × Pearl Lavender and Pink Beige × Pearl Beige, feature trendy base colors with pearl accent hues.

Additionally, gradient cosmos pattern reflectors enhance individuality. The classic red (Carmine) maintains a basic single-tone look, while a subtle gradient cosmos pattern reflector adds a refined touch.

View Details

【New Release】Earth NASA Randoseru® WWF Model UNICA ANIMA (Unica Anima)

Model No.: WWF-N05

Price including tax: ¥81,000 / Price excluding tax: ¥89,100

Gusset width: 12.5cm

Weight: approx. 1,230g

Main material: Clarino Aqua Duo

Color options: Frosty Gray / Turquoise / Olive Green

Insects, animals, trees—every one of them is an irreplaceable life born from Earth. Over 40,000 wild species are currently listed as threatened with extinction by IUCN in 2025.

Born from the desire to make even a small change as a fellow inhabitant of Earth.

5% of sales will support WWF Japan's environmental conservation activities.

View Details

【New Color】Earth NASA Randoseru® YOLO (Yoro)

Model No.: EY-N01

Price including tax: ¥72,000 / Price excluding tax: ¥79,200

Gusset width: 12.5cm

Weight: approx. 1,140g

Main material: Clarino F

Color options: Black × Navy (New Color) / Noir Pink × Antique White / Lilac × Pink Beige / Bordeaux × Khaki

YOLO stands for 'You Only Live Once,' meaning 'life is once only.'

Respect for individuality is expressed through bold use of multiple colors and an original asymmetrical flap design never seen before.

It carries the wish that children should have what they truly love.

*One dedicated YOLO cover is included with purchase.

View Details

【Staple Product】LA-TERRA (La Terra)

A new challenge! CHIKYU's lightest model ever, weighing approx. 1,000g

The design of the flap expresses Earth's '23.4-degree axial tilt'—a feature symbolizing our planet. It embodies the desire to protect children living with Earth. Alongside classic Black and Navy, a Rainbow option celebrates diverse individuality with vibrant colors. The axial tilt design on the flap and Earth motifs on the shoulder straps and sides are made of reflective material, enhancing visibility and safety.