"Fire!"
At the command, the ninja standing in the training ground raised a tool that appeared to be a gun made of some kind of wood and steel.
The caliber of the gun was just right to launch a kunai.
After the ninja pulled the trigger, a kunai shot out from the dark barrel like a bolt of lightning, hitting the target twenty meters away with incredible speed, deeply embedding itself in the wooden post, leaving only the circular end of the kunai exposed.
It can be imagined that if aimed at a human body, it might penetrate the flesh and blood.
Moreover, after this, the ninja using the gun showed no hesitation in pulling the trigger a second time.
In just a moment, the second kunai was also fired from the barrel.
Again it hit the wooden post with precision, embedding itself to the same extent as the first kunai.
The speed at which the gun fires is far beyond the speed of an average ninja throwing a kunai.
Additionally, the construction inside the gun allows wind attribute chakra to be attached to the kunai, increasing its penetration power.
Firing two kunai consecutively, there was no need for a third to verify.
This rapid-fire kunai gun is the latest modified kunai shooter from the military of the Land of Demons.
It aims to revolutionize current tactics in the Ninja Realm and provide solid military protection for the Land of Demons.
The ninja put away the rapid-fire kunai gun and approached a man wearing a white coat outside the field.
The man had stubble on his chin, a crew cut, and wore a monocle over his right eye. He looked quite energetic and intelligent.
"Doctor, the experiment is complete."
The ninja bowed respectfully.
"I saw, thank you for your hard work."
The man nodded, showing satisfaction with the kunai gun in the ninja's hands.
This kunai gun technology was not originally from the Land of Demons but rather a ninja tool from the Land of the Sky.
The ninja tool technology is not advanced, and as long as the structure is understood and the materials are available, it can be easily replicated.
However, from the higher-ups in the Land of Demons, such ninja tools are undoubtedly seen as outdated common tools.
The reason being the kunai guns from the Land of the Sky era had shortcomings such as slow loading speeds and insufficient penetration power.
The power when compared to an average ninja throwing a kunai was similar, but the flexibility was significantly lower.
To improve this minor ninja tool, several advancements were made over the past few years.
The firing speed of the kunai gun was first increased, and then to enhance the piercing power, the military secretly developed an internal device that could automatically attach wind attribute chakra without the need for a ninja.
Compressing this device into the small space inside the kunai gun faced many challenges before being completed.
Now, the power of the kunai gun has generally been elevated to a level where even ordinary ninja finds it difficult to defend against.
Of course, for a ninja to be defenseless, it's necessary that they are unaware and being targeted. Without large-scale coverage attacks, the ninja's dynamic vision and Instantaneous Body Jutsu can barely avoid it.
Most importantly, this gun does not require a ninja to operate; any ordinary person can use this tool to easily kill a wild beast.
This is where the convenience of such ninja tools lies.
There are numerous powerful ninja tools in this world, but the conditions to use those tools are very demanding, and some strong ninja tools even require the user's life force to activate.
In the man's view, such things are far from achieving innovation.
After all, they are still just magical toys for ninjas to play with.
This is why practical ninja tools that can be widely distributed become very valuable.
Thus, the technology for these ninja tools must be strictly confidential, and the dispersion of these tools must be tightly controlled.
"Dr. Kataki."
While the man was deep in thought, he heard a voice calling out to him.
Looking up, he saw a man approaching him.
"Lord Hakushi, what brings you to my place?"
The man was slightly surprised but still nodded to Hakushi to show respect.
"I came to check on things here. How is the research on the kunai gun, doctor?"
Hakushi asked with concern.
The man, Dr. Kataki, pondered for a moment before speaking to Hakushi: "The general aspects are almost complete, but the chakra attachment device is still imperfect, taking up too much space inside the gun. Additionally, the sealing space for storing kunai needs to be expanded. Otherwise, after shooting twenty, the gun needs to be refilled, which is too cumbersome."
A standard ninja in battle uses about fifteen to twenty kunai.
If a ninja is proficient with ninja tools, they can use over a hundred kunai and shuriken in battle, or even more.
The kunai gun developed by the military, although incredibly powerful and without usage barriers, allows ordinary people to easily use it and potentially counter-attack a ninja in battle.
Equipping ten thousand soldiers with such ninja tools for full-scale attacks would be even more intimidating.
A single kunai may not be formidable, but if ten thousand kunai are fired together, without using powerful defensive ninja techniques, it would be difficult to evade even for a ninja with the Sharingan and dynamic vision, resulting in being shot.