This problem is complicated because the Weight Reduction Fuinjutsu must balance reducing mass without eliminating it entirely.
If the seal is too strong, the ship will lose gravity and continue to rise uncontrollably.
If it is too weak, the ship will remain heavy and fail to float.
Reiji eventually finds a solution by dividing the seal into several parts spread throughout the ship.
The main seal is engraved on the bottom of the ship to control vertical balance, while secondary seals on the sides serve to stabilize horizontally.
This allows the ship to stay in the air without vacillating wildly.
However, Reiji realizes that simply floating is not enough.
The ship must be able to move forward, change direction, and deal with environmental challenges.
This is where Reiji begins to develop Anti-Shock Fuinjutsu.
Reiji carves intricate symbols into several strategic points on the ship's hull, channeling the seal's energy to absorb and distribute air pressure and shocks that might occur when the ship hits strong winds.
When Reiji activated this seal, the small boat seemed more stable.
The wind that had previously made the boat sway slightly was now absorbed well, as if there was an air cushion surrounding it.
Even so, Reiji knew that wind was not the only threat.
Sudden changes in weather, heavy rain, or storms could be a major obstacle.
Therefore, Reiji developed the Weather Control Fuinjutsu.
This seal did not work like most weather control jutsu.
Instead of changing the weather directly, this seal worked by detecting changes in the atmosphere around the ship and automatically adjusting the temperature and pressure inside the ship.
If a storm formed, the seal would stabilize the air pressure around the ship, creating a kind of protective layer that reduced the effects of strong winds and heavy rain.
If the air temperature dropped drastically, this seal would adjust the thermal balance so that the passengers inside the ship were not directly affected.
Reiji then added the Concealment Illusion Fuinjutsu, one of the most important innovations in Reiji's project.
Reiji carefully carved small symbols on the bottom and sides of the boat, forming an intricate pattern that blended with the Chakra in the air.
As a result, the boat became nearly invisible.
Light that hit the boat would be subtly deflected, making the boat appear like an empty sky or a wispy cloud.
In addition, the seal also manipulated the flow of Chakra around the boat, making the boat undetectable to ninja sensors.
...
...
...
Reiji took a deep breath, then boarded the boat.
As Reiji's feet touched the wooden floor, Reiji felt the boat sway slightly in the air, but remained stable.
Slowly, Reiji reactivated the Propulsion Fuinjutsu, and the boat began to move forward.
It was slow at first, but it gradually increased in speed.
However, in the midst of this trial, Reiji realized something quite worrying.
This small boat had no steering system.
At first, Reiji thought that the wooden oars that fishermen usually use could function in the air as well as in the water.
However, once the ship started moving faster, Reiji realized that the oars were completely useless in steering the ship.
The only way to change direction was to use both hands and forcefully tilt the ship's body.
However, this method was very inefficient, and if the ship was enlarged later, it would be impossible to rely on human power to change the course.
Reiji frowned.
This was a new challenge that Reiji had to solve.
However, Reiji did not feel too upset.
This wooden boat was indeed just an initial experiment.
The real goal was to create a larger flying ship, equipped with a more sophisticated rudder and navigation system.
Reiji then continued with some additional tests.
Where Reiji wanted to make sure that the Weight Reduction Fuinjutsu did not have any fatal flaws.
------------------------------
[Announcement: A New Novel Has Been Added!
The Puppet Maker in the World of Naruto
A man who is a scientist, researcher, and expert mechanic in robotics dies in a massive explosion that occurs in his laboratory while developing an advanced robot project. However, instead of experiencing death as he thought, the man awakens in another world—a strange place with vast stretches of desert.
There, the man is surrounded by people who can jump high, calling themselves ninjas. The confusion he initially felt grows as he realizes that this world is not unfamiliar to him. This is the world of Naruto! However, there is one thing that surprises him.
"Isn't this Sunagakure? Why am I not in Konoha? This poorest village... Oh my God, this is serious!"
Now, in the midst of a new life filled with danger and uncertainty, the scientist must find a way to survive in Sunagakure, a harsh place full of limitations. With his robotic knowledge, can the man change his fate in this ninja world, or will he fall along with the village?]
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