Naruto: I Borrow from the Future

On the high seas, amidst raging flames, a massive spherical water prison is expanding continuously.

With the Third Mizukage continuously pouring in chakra, the water prison enveloping him had a radius of over twenty meters!

"This defensive water prison is thick enough to block even Susanoo's arrows."

The Third Mizukage looked up again and saw the water vapor gathering upwards, with dark clouds brewing high in the sky. He then formed several hand seals.

"Water Release: Bubble Technique!"

He spat out a bubble, which quickly grew to a diameter of two meters.

The Third Mizukage himself entered the bubble, and inside the enormous water prison, the bubble floated up, its surface shimmering with seven-colored light.

"Your ninjutsu that utilizes celestial phenomena is indeed quite good."

The Third Mizukage nodded in approval, saying, "Especially when standing at sea, even if you dodge the lightning, you will still be affected by the shockwaves emanating from the water."

"But unfortunately, this is useless to me, who is proficient in all water-style ninjutsu."

They used a massive water prison as an external defense.

Inside the water dungeon, he floated on foam to prevent lightning strikes from affecting him inside due to the conductive waves from the seawater.

With these two ninjutsu combined, the lightning overhead posed no threat to him.

With this enormous water prison in place, as long as his chakra isn't exhausted, virtually no ninjutsu can break through its defenses!

"It seems your ninjutsu still needs some time to develop."

The Third Mizukage glanced up again, noticing a small patch of rain clouds overhead, and said leisurely, "So, do you want me to wait until your ninjutsu is ready?"

On the beach across the way.

Aoya took out a scroll from his ninja tool pouch, broke the seal, and took out the two lightning swords, Kiba.

"No!"

Qingye held the swords in both hands, a grin spreading across his face: "My ninjutsu is complete."

As he spoke, he raised both swords high at the same time, aiming them at the small patch of thunderclouds that had just formed in the sky.

Thunder Escape·Lightning!

With a crack, two bolts of lightning struck down from the sky, hitting the massive water prison below!

The lightning spread out on the surface of the spherical water prison, and with the help of the conductivity of seawater, the lightning penetrated directly into the interior of the water prison.

Lightning flashed on the inner walls of the enormous water prison!

However, the Third Mizukage floated in the air using bubbles and was completely unaffected.

"Is that all?"

The Third Mizukage had just finished speaking when he suddenly realized something was wrong.

Why is the lightning still flashing overhead?

In the thunderclouds above, two bolts of lightning struck the spherical water prison relentlessly, like two beams of light!

wow——

A sudden burst of firelight ignited above the water prison!

After this brief burst of light, a large amount of water vapor appeared, and under the intense heat, it continued to gather into the thunderclouds above.

"Um?"

The Third Mizukage frowned.

What's going on?

How did it catch fire up there?

"Hahahahahahahaha..."

Aoya burst into laughter, looking at the Third Mizukage's bewildered expression, and laughed wildly: "Looks like your era didn't emphasize this kind of learning, you old fool!"

In the past, Qingye would need to spend time accumulating a large amount of water vapor to form a cumulonimbus cloud of sufficient size.

But we don't need to anymore!

By electrolyzing seawater through continuous lightning, the generated hydrogen and oxygen explode under the high temperature of the lightning, and the resulting water vapor can continue to replenish the thunderclouds above!

With just a small initial cumulonimbus cloud, the size of the thunderclouds above can continuously expand by electrolyzing the seawater!

Inside the massive water prison, the Third Mizukage still had a furrowed brow.

Is there some special ninjutsu principle he hasn't learned?

Whatever, it doesn't matter!

This only makes the thunderclouds gather faster!

What does it matter how large the thundercloud is, as long as it cannot break through the outer water prison defense?

"Water Release: Water Dragon Bullet Technique!"

The Third Mizukage simply formed four hand seals, and a water dragon rose from the sea in front of the water prison, roaring as it charged towards Qingye.

Click!

The continuously falling lightning suddenly shifted its location!

The lightning bolt shifted its direction, and the water dragon was instantly shattered into splashes!

"...Your ninjutsu is indeed a bit tricky."

The Third Mizukage remained silent for a moment before speaking.

One huge advantage of drawing lightning from thunderclouds is its extreme speed!

His ninjutsu still requires hand seals, but the opponent's lightning summoning only takes less than a thousandth of a second!

"You think that's the end of it?"

Qingye suddenly smiled, and with the continuous pull of his two lightning blades, the direction of the lightning strikes from the sky gradually shifted. Around the huge water prison, two continuous bolts of lightning circled around the outside of the water prison.

The rising steam enveloped the enormous water prison.

"What's going on now?"

The third generation of Mizukage looked around.

The water prison is now shrouded in mist from the steam, making it impossible to see anything on the opposite bank.

Are you planning to use the fog to block his vision and then launch an attack?

click!

A flash of lightning streaked across the sky, and the sound of thunder had just erupted when it was immediately swallowed up by an even more terrifying explosion!

Within the water vapor barrier enveloping the water prison, a flash of fire appeared, and a terrifying explosion caused the water prison, with a radius of more than twenty meters, to shake violently and teeter on the brink of collapse!

"What kind of ninjutsu is this?!"

Madara Uchiha was completely baffled.

First, the spot on the water prison that had been struck by lightning inexplicably caught fire.

Now, the water prison is enveloped by a barrier of steam, and an explosion suddenly occurs inside!

What kind of weird ninjutsu is this?

It completely contradicts the principles of any ninjutsu he knows!

The violent explosion blasted away the fog barrier that had previously enveloped the massive water prison.

The massive amount of water vapor, swept up by the high temperature of the explosion, continued to rise into the air, further expanding the area of ​​the thunderclouds above!

"..."

Madara Uchiha controlled the Third Mizukage's body and quickly reinforced the water prison that had been nearly destroyed in the previous explosion.

Chakra was continuously poured into the seawater, and the giant water prison continued to expand, eventually forming a huge spherical water body with a diameter of 100 meters!

"Old man, it's time to go! You're nothing but a remnant of the old era; the new era has no vessel to carry you!"

Qingye laughed loudly and used the same trick again. The lightning blade drew lightning and formed a ring around the water prison, continuously electrolyzing the seawater. The resulting water vapor barrier once again enveloped the water prison.

This is the result of his previous research!

Hydrogen gas is continuously generated by electrolyzing seawater through continuous and stable discharge.

At the same time, a vapor barrier was created on the outside to seal off the area, completing the enclosed environment!

Continuous electrolysis of seawater leads to a hydrogen concentration that reaches the threshold!

then!

Thunder!

As lightning struck, the intense heat of the lightning triggered a terrifying explosion that engulfed the water prison, which was a hundred meters in diameter!

After the explosion, the water vapor from the combustion of hydrogen and oxygen, along with the surrounding vapor barrier that had been blasted apart, were swept into the air by the high temperature generated by the explosion, replenishing the energy consumed by the thunderclouds above!

"Is this... another kind of infinite explosion ninjutsu?"

Madara Uchiha looked at the thunderclouds above his head, which showed no signs of diminishing, and saw the two bolts of lightning begin to circle the water prison again. He also saw the fog outside begin to rise again, enveloping the water prison.

Lightning strikes, explosions, water vapor formation, replenishment of thunderclouds, more lightning strikes, more explosions...

Infinite loop!