"This is…?"
Hiroki stared at the familiar error prompt, momentarily stunned.
As a former software engineer, he had seen the "driver not found" problem more times than he cared to count—cheap knockoff peripherals, the company's bizarre USB drives, even random game controllers brought back from overseas.
And the moment he saw that message, his instincts kicked in.
Check the device information.
Control Panel → Device Manager.
Device Manager—activate.
In Windows, Device Manager was the master catalogue of hardware. Graphics cards, sound cards, keyboards, mice, USB drives—anything connected to the system appeared there.
Hiroki began scanning the list.
"Under Imaging Devices, my two eyes are listed as standard visual sensors," he muttered. "Mounted in the eye-socket slot and functioning normally."
So his basic vision was fine.
Logically, if he replaced his normal eyes with Byakugan, the new ones should appear in the same category.
But right now, the Byakugan wasn't installed in his eye sockets.
It was connected through his hand.
His gaze moved further down.
Universal Serial Bus Controllers.
USB.
Anything related to USB connections appeared here.
And sure enough—the Byakugan was listed among them.
"…That's weird."
A visual organ that wasn't even in an eye socket shouldn't show up as a connected device.
Then again…
Earth Grudge Fear's black tendrils could still move after leaving their host.
Rasa's Sand Eye didn't sit inside a skull either.
Maybe "weird" was relative in this world.
Continuing down the list, Hiroki spotted three familiar entries.
USB Root Hub.
Essentially a power strip for USB devices—providing sockets, power, and signal lines.
Right now he had simply touched the gift box with his hand and the Byakugan had activated.
Which meant his Golden Finger system was probably treating chakra as the enabling power source.
Next came:
Standard OpenHCD USB Host Controller.
Even simpler.
A USB hub had no electricity unless plugged into a wall outlet. The host controller was that outlet—supplying power and coordinating data traffic between devices.
But those weren't the problem.
The real issue appeared a line below.
USB Mass Storage Device — ⚠
A yellow exclamation mark.
In Device Manager, that symbol meant trouble: missing drivers, faulty hardware, or conflicts.
Apparently the Byakugan had been mistaken for a USB flash drive.
And something had gone wrong.
Worse still—
Under Other Devices, another entry appeared:
USB 2.0 Camera — ⚠
The dreaded Other Devices category.
Windows dumped anything it didn't recognize there.
If a device ended up in that list, it meant the system had absolutely no idea what it was dealing with.
"A composite device…" Hiroki murmured.
Something appearing both as mass storage and a camera wasn't unusual. Many modern gadgets did this—like webcams with built-in microphones.
But right now both functions had crashed.
Meaning the Byakugan had major compatibility issues when connected through his palm.
Hiroki right-clicked USB 2.0 Camera.
Properties.
A window opened.
He switched to the General tab.
USB 2.0 Camera Properties
Device type: Other devicesManufacturer: UnknownLocation: Chakra Interface – Left Palm
Device status:The driver for this device is not installed. (Code 28)
His eyes narrowed.
Chakra Interface – Left Palm.
So the system had registered his palm as a hardware port.
Interesting.
More importantly—
Code 28.
Driver not installed.
One of the most common errors.
And exactly what he needed to solve.
He switched to the Details tab.
Most people would find the information here incomprehensible.
But to a programmer, this was the real key.
From the property dropdown, he selected:
Hardware IDs.
These IDs allowed Windows to match a device to the correct driver.
The format looked familiar:
Class — XX & SubClass — YY & Prot — ZZ
Class codes told the system what category a device belonged to.
Subclasses refined the function.
Protocols defined communication rules.
Hiroki leaned closer.
Class — 0E
Video device.
Webcams, capture cards—anything that handled visual input used class 0E.
So far, so good.
SubClass — 03
Video Control.
Standard for camera devices.
Still correct.
Prot — 00
Basic UVC protocol.
As long as this protocol existed, Windows could load a generic webcam driver.
Which meant—
The Byakugan should have installed automatically.
Yet the driver had failed.
"…Strange."
Since the eye was already connected to the system, theoretically it should work whether in his hand or an eye socket.
Even basic visual output should function.
But without a driver—
It was useless.
Frowning, Hiroki opened Device Functions.
Then he froze.
The function list appeared.
Device Functions
• Video capture• Chakra signal input• Meridian scan• Penetrative imaging
"…Ah."
Everything suddenly made sense.
A normal webcam only had video capture.
Which meant Windows' generic driver could easily handle it.
But the Byakugan had four functions.
And the last three were completely non-standard.
Chakra signal input.Meridian scan.Penetrative imaging.
None of those existed in Windows' generic camera driver.
Which meant his Golden Finger system had rejected the entire device.
Because Windows worked in an all-or-nothing manner.
If the function list exceeded the driver's capability—
The system refused to install it entirely.
It didn't "intelligently" install a partial driver just for the single compatible function.
Meaning the stupid system had failed to activate even basic video capture.
"…Stupid Windows."
Hiroki rubbed his temple.
Still, the important thing was that he had found the problem.
Now he only needed the solution.
He remembered something.
In Device Manager, the Byakugan appeared both as a flash drive and a multi-function camera.
Some hardware devices stored their own drivers internally for convenience.
And in the original story, Byakugan and Sharingan were practically plug-and-play.
Ao and Kakashi had used transplanted eyes without needing any clan bloodline compatibility.
Which suggested one possibility.
The Byakugan itself might contain its own driver package.
With that thought, Hiroki minimized Device Manager.
Then he opened the Byakugan storage folder.
The moment the window appeared—
He froze.
Inside the folder sat only two things.
One was a single driver file.
The other…
Something both familiar and utterly surreal.
"Infinite View-Range" v(>^ω^<).01.03 — Four-Function Trainer.ee
Hiroki stared at the screen.
"…Wait."
"…Isn't this…"
FLiNG Trainer?!