New Collaboration Jewelry from 'The Idolmaster SideM' x 'TUfave'! Original Illustrations Featuring 5 Ambassadors Also Revealed

From 'TUfave', a brand born from Take-up Co., Ltd., collaboration jewelry with 'The Idolmaster SideM' is now available.

The ring, inspired by the wing design from the 'The Idolmaster SideM' logo, features a refreshing green quartz in the center, evoking the logo's color, and is crafted as a high-quality collaboration piece suitable for everyday stylish wear. Customers who purchase the ring will receive a special box and a selectable acrylic ring stand featuring newly drawn illustrations!

＜About Reservations and Sales＞

【Online Reservation】
Reservation Period: Friday, June 5, 2026, 11:00 AM to Monday, July 6, 2026, 11:59 PM
Scheduled Delivery: Sequential shipping from late October 2026
*Cancellations and returns after reservation are not accepted. Please understand in advance.
TUfave Sales Page: https://www.tufave.com/pages/sidem

【In-Store Reservation】
■ Atre Kawasaki Store, 3rd Floor, TAKE-UP Aula
You can view the actual product and make a reservation at the store.
Reservations for store-exclusive necklaces are also accepted.
*Please note that no goods will be sold at the Atre Kawasaki store during the above period.

【POP UP STORE】
■ Ueno Marui, 1F, Calendarum
Event Period: Friday, June 5, 2026, to Thursday, June 11, 2026
Business Hours: 11:00 AM to 8:00 PM
At the Ueno Marui POP UP STORE, products will be available for early sale.
You can view and try on the jewelry.
*As stock is limited, please use the online reservation for sold-out items. Please stop by if you are in the area.
*To alleviate congestion and ensure safety, this event will operate on a [prior reservation system].
*There are limits on the number of items that can be purchased.
*Depending on congestion, we may limit the number of items sold per person or set a daily sales cap.

■ Product Lineup

① The Idolmaster SideM Image Ring
A special ring symbolizing the soaring idols, inspired by the wing design from the 'The Idolmaster SideM' logo. The design incorporates spread wings into a simple, straight form, subtly evoking the essence of 'The Idolmaster SideM'. A refreshing green quartz, reminiscent of the logo's color, is set at the center. Flanking it are clear sparkling stones representing the shining idols, adding a luxurious sparkle. (Diamonds for platinum, cubic zirconia for silver.) It is a high-quality piece suitable for everyday stylish wear.
【Price】Silver: ¥22,000 (tax incl.) Platinum: ¥148,500 (tax incl.)
【Materials】Silver: Sterling silver (rhodium plating), green quartz, cubic zirconia
Platinum: Platinum, green quartz, diamond (0.02ct)
【Size】Top width approx. 4.0mm, arm width approx. 1.5mm
Available Sizes: 6 to 15
(Resizing range: 7-14 → ±1, 6 → +1 only, 15 → -1 only)
Acrylic Ring Stand
One 'Selectable Acrylic Ring Stand (5 types total)' featuring newly drawn illustrations will be given as a gift per ring. A luxurious novelty that allows you to choose your favorite member's design and display it alongside the special ring.
BOX
The product will be delivered in a special box featuring the 'The Idolmaster SideM' logo.

② The Idolmaster SideM Unit Silver Necklace
A special necklace inspired by the wing design from the 'The Idolmaster SideM' logo, with parts representing each unit swaying. The wings have a delicate, layered construction for a three-dimensional effect, and the luster of the metal evokes the idols who shine brighter every day. Like the idols who continue their efforts, this necklace shines in every moment, a high-quality piece suitable for everyday stylish wear.
*Please note that this necklace does not come with the newly drawn acrylic ring stand.
【Price】¥24,200 (tax incl.)
【Materials】Sterling silver (rhodium plating), cubic zirconia
【Size】Chain: Total length approx. 45cm (including 5cm adjuster)
Jupiter Top: approx. 10.8mm (H) x 8.5mm (W)
DRAMATIC STARS Top: approx. 10.5mm (H) x 8.5mm (W)
Altessimo Top: approx. 11.0mm (H) x 8.5mm (W)
Beit Top: approx. 11.0mm (H) x 8.5mm (W)
W Top: approx. 10.0mm (H) x 8.5mm (W)
FRAME Top: approx. 10.0mm (H) x 8.5mm (W)
Sai Top: approx. 10.3mm (H) x 8.5mm (W)
High×Joker Top: approx. 11.0mm (H) x 8.5mm (W)
Shinsoku Ittou Top: approx. 11.0mm (H) x 8.5mm (W)
Café Parade Top: approx. 10.8mm (H) x 8.5mm (W)
Mofumofuen Top: approx. 10.6mm (H) x 8.5mm (W)
S.E.M Top: approx. 10.8mm (H) x 8.5mm (W)
THE Kogadou Top: approx. 10.8mm (H) x 8.5mm (W)
F-LAGS Top: approx. 9.5mm (H) x 8.5mm (W)
Legenders Top: approx. 11.2mm (H) x 8.5mm (W)
C.FIRST Top: approx. 11.2mm (H) x 8.5mm (W)
BOX
The product will be delivered in a special box featuring the logo of each unit from 'The Idolmaster SideM'.

③ The Idolmaster SideM Image Silver Necklace (Store Exclusive)
A special store-exclusive necklace inspired by the wing design from the 'The Idolmaster SideM' logo, symbolizing the idols. The wings have a delicate, layered construction for a three-dimensional effect, and the luster of the metal evokes the idols who shine brighter every day. A dazzling diamond is set in the center, and below it, a refreshing green quartz reminiscent of the 'The Idolmaster SideM' logo color is set in a star-shaped bezel. Its rhythmic swaying and sparkle perfectly represent the idols on stage. Like the idols who continue their efforts, this necklace shines in every moment, a high-quality piece suitable for everyday stylish wear.
【Price】¥34,980 (tax incl.)
【Materials】Sterling silver (rhodium plating), green quartz, diamond (0.02ct)
【Size】Top: approx. 10.0mm (H) x 8.5mm (W)
*This item is sold only at the following store:
・Atre Kawasaki Store, 3rd Floor, TAKE-UP Aula