NIJISANJI EN Collection

Arbiter Studio × NIJISANJI EN brings Shu Yamino’s world to your desk with a special collection of gaming gear, featuring a keyboard and mouse.

Each item takes inspiration from Shu’s signature colors, style, and personality, with thoughtful details that make the collection feel uniquely his. Whether you’re playing your favorite game or spending time at your desk, enjoy designs that celebrate Shu alongside features made for everyday use.

Bring Shu’s world into your gaming setup.

**PREORDER/SHIPPING NOTICE**
Pre-order closes on November 7th

Wireless Mice – Regional Availability:
North America, Europe, United Kingdom, Japan, South Korea, and Australia.
Availability in other regions may be subject to local wireless regulations and certification requirements

Estimated delivery timelines:
• N.A. orders:
Clothpad and Glasspad - End of December 2026 (ocean freight to U.S. warehouse before final delivery)
Keyboard - Mid January 2027 (ocean freight to U.S. warehouse before final delivery)
Wireless Mice - Mid February 2027

• International orders:
Clothpad and Glasspad - Early December 2026
Keyboard - Mid January 2027
Wireless Mice - Mid February 2027

Arbiter Studio × NIJISANJI EN brings Claude Clawmark’s world to your desk with a special collection of gaming gear, featuring a keyboard and mouse.

Each item takes inspiration from Claude’s signature colors, style, and personality, with thoughtful details that make the collection feel uniquely his. Whether you’re playing your favorite game or spending time at your desk, enjoy designs that celebrate Claude alongside features made for everyday use.

Bring Claude’s world into your gaming setup.

**PREORDER/SHIPPING NOTICE**
Pre-order closes on November 7th

Wireless Mice – Regional Availability:
North America, Europe, United Kingdom, Japan, South Korea, and Australia.
Availability in other regions may be subject to local wireless regulations and certification requirements

Estimated delivery timelines:
• N.A. orders:
Clothpad and Glasspad - End of December 2026 (ocean freight to U.S. warehouse before final delivery)
Keyboard - Mid January 2027 (ocean freight to U.S. warehouse before final delivery)
Wireless Mice - Mid February 2027

• International orders:
Clothpad and Glasspad - Early December 2026
Keyboard - Mid January 2027
Wireless Mice - Mid February 2027

Arbiter Studio × NIJISANJI EN brings Elira Pendora’s world to your desk with a special collection of gaming gear, featuring a keyboard, mouse, glass mousepad, and cloth mousepad.

Each item takes inspiration from Elira’s signature colors, style, and personality, with thoughtful details that make the collection feel uniquely hers. Whether you’re playing your favorite game or spending time at your desk, enjoy designs that celebrate Elira alongside features made for everyday use.

Bring Elira’s world into your gaming setup.

**PREORDER/SHIPPING NOTICE**
Pre-order closes on November 7th

Wireless Mice – Regional Availability:
North America, Europe, United Kingdom, Japan, South Korea, and Australia.
Availability in other regions may be subject to local wireless regulations and certification requirements

Estimated delivery timelines:
• N.A. orders:
Clothpad and Glasspad - End of December 2026 (ocean freight to U.S. warehouse before final delivery)
Keyboard - Mid January 2027 (ocean freight to U.S. warehouse before final delivery)
Wireless Mice - Mid February 2027

• International orders:
Clothpad and Glasspad - Early December 2026
Keyboard - Mid January 2027
Wireless Mice - Mid February 2027

Arbiter Studio × NIJISANJI EN brings Meloco Kyoran’s world to your desk with a special collection of gaming gear, featuring a keyboard, mouse, glass mousepad, and cloth mousepad.

Each item takes inspiration from Meloco’s signature colors, style, and personality, with thoughtful details that make the collection feel uniquely hers. Whether you’re playing your favorite game or spending time at your desk, enjoy designs that celebrate Meloco alongside features made for everyday use.

Bring Meloco’s world into your gaming setup.

**PREORDER/SHIPPING NOTICE**
Pre-order closes on November 7th

Wireless Mice – Regional Availability:
North America, Europe, United Kingdom, Japan, South Korea, and Australia.
Availability in other regions may be subject to local wireless regulations and certification requirements

Estimated delivery timelines:
• N.A. orders:
Clothpad and Glasspad - End of December 2026 (ocean freight to U.S. warehouse before final delivery)
Keyboard - Mid January 2027 (ocean freight to U.S. warehouse before final delivery)
Wireless Mice - Mid February 2027

• International orders:
Clothpad and Glasspad - Early December 2026
Keyboard - Mid January 2027
Wireless Mice - Mid February 2027

Arbiter Studio & NIJISANJI EN Limited Edition Glass Mousepad is the ultimate blend of elegance and performance. With its heat-treated glass surface, it offers a smooth, frictionless experience for rapid and accurate movements. The 500mm x 400mm dimensions provide ample room for high-level play, while the custom silicone base ensures stability on any surface. 

The outfit, the background elements, and the keyboard design were all brought to life by ideas and suggestions conceived by the Liver himself.

Elevate your setup with the exclusive collaboration between Arbiter Studio and NIJISANJI EN. This premium cloth mousepad is designed for both precision and comfort, featuring a low-friction surface that delivers smooth, consistent control—perfect for gaming or creative work.

The outfit, the background elements, and the keyboard design were all brought to life by ideas and suggestions conceived by the Liver himself.

Available in two versatile sizes:

XL (900 × 400 mm) – ideal for full desk coverage
L (500 × 400 mm) – compact yet spacious for focused play

With a 3 mm thickness, it provides just the right balance of stability and cushioning, ensuring long-lasting comfort during extended sessions.

Bring style and performance together with this limited collaboration piece.

Arbiter Studio and NIJISANJI EN collaborate to create an exclusive keyboard inspired by Shu Yamino and Claude Clawmark.
Built on Arbiter’s ARC platform, this 65% Hall Effect keyboard delivers unparalleled precision with 8K polling, an advanced carbon fiber plate, and integrated poron dampening for supreme acoustics and control.

Encased in a meticulously CNC-machined aluminum chassis with a smooth, matte finish, it embodies the perfect balance of style and performance.
Featuring next-generation new Gateron magnetic switches and custom dye-sublimated PBT keycaps, this exclusive edition blends Arbiter’s engineering excellence with the distinct personalities of Shu and Claude where elegance meets raw energy.

The outfit, the background elements, and the keyboard design were all brought to life by ideas and suggestions conceived by the Liver himself.