Ryun was indeed using his three-tomoe Sharingan at this moment.
The rain was heavy, the night was dark, and the lighting equipment was extremely outdated. He needed the three-tomoe Sharingan's insight ability to kill enemies with the most precise and fastest speed possible!
This was the battlefield. If he still thought about hiding his abilities, he might end up hiding himself straight into the Pure Land...
Ryun was obviously not that stupid. Besides, with the heavy rain and the dim environment, it wasn't easy to see his three-tomoe Sharingan.
And even if someone did see it, so what? Whether they could survive against him was still unknown.
In truth, his strength was far from the level where he could "close his eyes" and slaughter freely. Right now, he was relying on the advantage of his lightning weapons and the element of surprise to catch the low-level Rain-nin off guard.
This wasn't some small skirmish in the village. This was a life-or-death battle. If he had the powerful abilities of the Sharingan but refused to use them, he would be no different from an idiot.
If he wasn't careful and got himself killed, then he truly deserved it.
"Suiton: Suiryūdan!" (Water Style: Water Dragon Bullet)
The Rain-nin jonin quickly formed hand seals, and a massive water dragon took shape, roaring as it charged straight at Ryun!
In this heavy rain, water-style ninjutsu was the most chakra-efficient, fastest, and most powerful method of attack.
Ryun had been keeping a large portion of his attention on the jonin. The moment his three-tomoe Sharingan saw the enemy forming seals, he was already on guard...
The Water Dragon Bullet required many hand seals. By the time the water dragon rushed toward him, Ryun had already activated the Shunshin no Jutsu (Body Flicker Technique).
"Raiton: Rakurai no Jutsu!" (Lightning Style: Falling Thunder Technique)
A bolt of lightning quickly formed above the Rain-nin jonin's head. The next moment, the thunderbolt struck down at an astonishing speed.
Unfortunately, the jonin transformed into a "hariko" (substitute doll), a signature substitution technique of the Rain-nin!
"Suiton: Suijinheki!" (Water Style: Water Wall)
A Rain-nin chunin quickly formed hand seals and activated the technique, sending a powerful water column straight at Ryun.
At the critical moment, Ryun also used a "kawarimi" (substitution) with a wooden log to escape, taking the opportunity to hide his figure in the darkness.
'It's a shame I know too few ninjutsu. Fire-style techniques are useless in heavy rain, and only lightning-style can play a big role here...' Ryun thought to himself.
BOOM!
The entire outpost suddenly began to shake violently. A massive yellow-brown snake opened its maw and lunged at the remaining Rain-nin. This was clearly Orochimaru beginning to exert his strength!
The two jonin working together were no match for him, nor could they hold him off for long.
By now, he had already killed his target jonin and planned to use his summoned snake to quickly clear out the remaining enemies.
The agreed five minutes were almost up. If they didn't hurry and kill more enemies, the two of them would miss their chance.
If possible, Orochimaru wanted to wipe out this small outpost before reinforcements arrived. That would be the ideal outcome.
"Suiton: Daibakufu no Jutsu!" (Water Style: Great Waterfall Technique)
As the Rain-nin jonin unleashed this high-level water-style technique, a terrifying flood instantly crashed into the giant snake lunging at him, forcefully pushing it back.
Even a snake as thick as a large water vat seemed powerless against an A-rank ninjutsu. The entire outpost was flattened by this artificial flood.
This was a water-style technique that took advantage of both timing and terrain. Its power was truly terrifying. For the moment, Orochimaru and Ryun could only avoid its force, not daring to block it head-on.
After the flood passed, the last remaining Rain-nin jonin gasped for breath. This water-style technique was powerful, but its chakra consumption was also immense.
Just as he stood panting on the water's surface, countless venomous snakes suddenly burst out from the muddy water beneath his feet. The sight terrified the jonin, who hastily leaped away.
But before he could land, a sharp chirping sound erupted from behind him.
"Chidori!"
With the lightning-style technique activated, Ryun's body erupted with terrifying speed under the current's enhancement. In the blink of an eye, he was already behind the Rain-nin jonin.
His lightning-covered hand pierced straight through the jonin's heart. Orochimaru, who saw this from a distance, smiled in satisfaction.
At this moment, Ryun wasn't using his Sharingan. In his normal state, his eyesight was far superior to Kakashi's. Even without activating it, he wouldn't be blinded by the lightning's glare—the eyes of the Uchiha clan were not as weak as those of ordinary people.
Moreover, before launching his attack, he had already used his Sharingan to lock onto the enemy's landing point. He only needed to charge in one precise direction, and there was almost no chance of error.
With the death of the last Rain-nin jonin, the small outpost was completely wiped out by the two of them.
Though it might have seemed like a long battle, only five minutes had passed from the moment the explosive tags detonated until now.
"Retreat!"
There was no time for discussion. Orochimaru uttered a single word, and the two of them vanished from the spot.
They ran for about ten kilometers before finally slowing down, walking side by side under the rain.
"Ryun-kun's strength is truly beyond my expectations. It's hard to believe you're just a fresh graduate from the Ninja Academy."
Orochimaru glanced at the steady-footed boy beside him.
They had just finished an intense battle, yet this guy still seemed perfectly composed, his breathing steady as if he still had plenty of chakra left.
"You flatter me, Orochimaru-sensei. I still have many shortcomings." Ryun replied humbly.
"The Land of Rain's battlefield limits the use of fire-style techniques. I want to learn more ninjutsu..."
Ryun took the initiative to make this request. Orochimaru had told him before that if he wanted to learn ninjutsu, he could ask. Now, he didn't plan to hold back.
"Heh... No problem. You've already mastered fire and lightning chakra nature transformations, right? Perhaps you can try condensing water-nature chakra next."
"In the damp environment of the Land of Rain, transforming your chakra nature should be easier."
Chakra natures could be developed through training. Every jonin had at least two different chakra natures. Orochimaru thought Ryun could try water-style ninjutsu.
After all, in a battlefield like the Land of Rain, water-style techniques were the first choice for combat.
Pure water manipulation consumed relatively little chakra, yet the power of the techniques was more than sufficient. The benefits were high, making it well worth Ryun's effort to learn.
"Of course, aside from water-style, lightning-style techniques are also very effective here. When we return, I'll give you two high-level lightning-style techniques... You can start training your water-nature chakra after mastering those!" Orochimaru generously promised.
"Thank you, Orochimaru-sensei!"
Ryun immediately smiled in delight. A major reason he had taken the risk to come here was to learn more techniques from Orochimaru.