Tenkey] Tenkaichi Keyboard Waiwai Kai Vol.9 Report-2

Here is a report on the individual booths at the “Tenkaichi Keyboard Waiwai Kai Vol. 9” held on November 8, 2025.

Please see below for the corporate booth section.

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Report on Tenkaichi Keyboard Waiwai Kai Vol. 9 ➖ Individual Booths

In the individual booth section, I will focus on keyboards that I was interested in and works that I was able to hear directly from the creators.

One-off profile Cornelius created by the grandfather of column staggered layouts

foostan is no stranger to the homebrew keyboard community as the author of Corne, a left-right split-column staggered layout keyboard that he released in 2019.

Many keyboards have been created featuring this keyboard, not only in Japan but also in the world.

He displayed a mirror-finished model of the Cornelius v2 (low-profile version), which he announced in August 2024.

It is truly a supreme one-off product, with the aluminum case without surface treatment polished by hand.

Cornelius I had it manufactured without surface treatment and polished by hand version pic.twitter.com/XUlkwArgm7

– foostan (@foostan) November 8, 2025

Also active as a titanium artisan keycap artist｜Murasaki Hasuno

Around Mr. Hasuno Murasaki, who invented the Lotus Array, were many keyboards featuring the Lotus Array.

Of course, the new original keyboard with a trackball in the center of the keyboard was also on display, but what caught the eye most was a group of beautiful artisan keycaps.

Its keycap, named “Ekam,” is formed in titanium and polished by hand, one by one, to form a single shape.

The keycap, shaped like a lotus petal, changes its appearance depending on the pattern on the top surface and the way it is polished.

In addition, the format in which a jewel is inlaid into the top surface, named Dve Ratna, transcended the boundaries of an artisan keycap and had the presence of a ring.

It looks like a piece of fine furniture｜Mokulate’s attention to detail in its wood cases is wonderful!

The wood case guru in the home-built keyboard world is Nobuki Inoue.

Mokulate is a keyboard that he created from scratch to make a wooden case for a wooden keyboard.

When existing keyboards are enclosed in wood, it is difficult to machine horizontal holes and chamfering by CNC alone, which requires a lot of manual work and tends to reduce work efficiency, and this keyboard was designed to solve this fundamental problem.

By creating the bottom case with 3DP case and the top case with wood, they were able to efficiently create a flat top surface that requires no horizontal holes and is easy to surface.

The appearance of the dark wood-colored body, which appears to be walnut, combined with the matte LAK keycaps, makes one feel as if one is admiring a piece of high-end furniture or high-end audio equipment.

The default tenting angle of 4 degrees is also quite easy to use.

The battery is stored on the back of the device, and the entire microcontroller is covered by the device.

I look forward to seeing this come out in the world.

Pioneering a new genre of double trackball mouse｜mass

The new product from mass, which designs and develops “dual trackball keyboards” such as the Omuni CS and Omuni Ortho, is a “dual ball trackball mouse.

天キーの前日に急いで用意したのに忘れていった紹介POPを供養させて下さい🙇
（始めて見た方からしたら一切情報無かったかも）#omni_kbd pic.twitter.com/3txL01oUnE

— mass (@mass_0X00) November 9, 2025

その名も「Omuni TB（仮）」

Shakupan氏のアドバイスをもとに1キーを急遽追加して7ボタンとなったのが上の筐体で、最初のプロトタイプは6ボタンだったそうです。

握り込むスタイルのトラックボールマウスで、大玉は44ｍｍ、小玉は20ｍｍ。

操作はDEFT Proのような人差し指操作スタイルとなっており、親指ではなく人差し指や中指で操作するタイプです。

小玉トラックボールのほうは親指操作となっており、人差し指球でカーソルを操作し、親指球でスクロールを操作できるという革新的な操作スタイルとなっているのが大きな特徴となっています。

また、右背面には1.28インチの円形ディスプレイを搭載しており、Omuni CS同様に各種設定ができたり、タッチパッドとしても使うことができます。

自作トラックボールのプロトタイプが完成しました！
すごくカッコよく仕上がったと思うので満足です！
来週の天キーで展示する予定なので参加の方お時間あれば触りに来てください！

name: omni TB（仮）プロトタイプ
ball size: 44mm 20mm
switch: D2F-01F
display: 1.28inch touch LCD#自作マウス pic.twitter.com/9ABI7swqeb

— mass (@mass_0X00) November 2, 2025

7ボタン全てにVialファームウェアで設定できるだけのマクロを仕込むことが可能で、デモ機ではエクセルの行挿入や範囲選択などのショートカットが仕込まれていました。

トラックボール自体の支持機構も完全オリジナルとなっており、スラストベアリングを3基搭載し、軽い送球感を作り出しているとのことです。

pic.twitter.com/hJvB1iGV9J

— mass (@mass_0X00) November 4, 2025

Jezail Funder’s New Exhibit Boosted by Cornix Hit｜Jezail Funder Japan’s Mr. Zhu

Zhu’s booth displayed two new products that Jezail Funder appears to be preparing to sell.

First is “Jiffy75,” a left-right split 75% ANSI layout.

The wooden case and palm rest are integrated into one piece, and the look is addictive.

Also on display next to it was the compact looking “Bashful.

It appears to be a low-profile HHKB-style keyboard, but it was not split backspace, and while based on ANSI, it had “conversion” and “no conversion” in the Bottom Row layout, making it a keyboard full of originality.

This is something to look forward to.

Engineer’s meteorite40

The genre of keystroke feel is really deep and I have no idea what the correct answer is.

Among those that made me think that “Thocky” might be the right answer was Hajire Engineer’ s METEORITE40.

販売している商品とは異なるワンオフのアルミケースを採用したモデルでは、本当に気持ち良い「コトコト感」を感じることができました。

隣に展示していた「ZEN65」の打鍵感に近く、はしくれさんの本気を感じました。

meteorite40に関しては今年中にGreenkeysにてレビューを公開予定です。

The World of Ultra-Thin Akebono Components｜NUMB41 (NAMUSHIY)

Namushii-san exhibited his own arcade controller called LuminoSound.

It is a controller keyboard exclusively for sound games, which was planned with “Mr. Takamura”, the director of Touhou Danmaku Kagura.

According to Namushii, the needs for akebono have been changing in recent years, and while “large and heavy” akebonos used to be preferred for stability, recently the needs have shifted to “thin and light” for easy portability.

The purpose of the existence of the akebono is “speed,” and by using key switches with short strokes and shallow actuation points, the physical input speed is increased to the utmost limit.

It was a glimpse into a different and deeper world than that of mechanical keyboards.

TGR and Lamy – The World of Custom Keyboards｜Hotarujaya-san

Two Monokei x TGR 910 v2 ME Suave Blue /Lamy TKL were displayed by Hotaruchaya.

This double name of Monokei and TGR is set with GMK Norse, and its distinctive sublegend is irresistible.

The hollowed-out “910” logo is also a high point of appreciation.

(The PCB is not a hot swap but a solder.)

Lamy TKL is a TKL-sized keyboard sold by KIBOU.

(Taken from Mekib as no product information was available)

The almost light blue half-matte body, which is probably machined from polycarbonate, is a work of art.

This is the one that satisfies the desire for ownership.

Both machines are very particular about the use of deep dish for homing keys.

English Summary

Greenkeys’ “Vol. 9 – Report 2” covers standout individual booths from Tenkaichi Keyboard Waiwai-kai on Nov 8, 2025. Highlights include foostan’s mirror-polished, low-profile Cornelius v2 one-off; Hasuno Murasaki’s titanium artisan caps (“Ekam”) and gemstone-inset “Dve Ratna”; Nobuki Inoue’s wood-first keyboard Mokulate (top case in wood, default 4° tent, wireless-oriented design); mass’s prototype Omuni TB dual-trackball mouse (44 mm + 20 mm balls, 1.28″ round touch display, Vial-programmable macros); Jezail Funder Japan’s upcoming Jiffy75 split 75% with integrated wood case/palm rest and compact low-profile Bashful; Hashikure Engineer’s meteorite40 aluminum one-off tuned for a “thocky” feel (akin to ZEN65); NUMB41’s ultra-thin 7 mm LuminoSound rhythm-game controller; and Hotarujaya’s custom Monokei x TGR 910 v2 ME (with GMK Norse) and Lamy TKL in a striking translucent body. The piece underscores the variety and craftsmanship of Japan’s DIY keyboard scene.