The Land of Iron—a realm of perpetual neutrality.
It was a land without ninja, protected instead by a caste of warriors known as "Samurai."
Positioned between the Land of Lightning and the Land of Earth, and bordering the Land of Fire, its unique geography and lack of a shinobi system were the pillars of its independence.
While the Land of Fire was currently in the grip of a crisp autumn, the Land of Iron was already buried under a heavy, suffocating blanket of snow. The temperature was low enough to freeze the breath in one's lungs.
High atop a mountain pass, the wind howled like a wounded animal.
Two silhouettes lay in the snow, slowly being buried by the white drifts. Tsume Inuzuka jolted awake, her eyes snapping open as she bolted upright. Her hand was still gripped tightly by a small, freezing palm.
The snow reflected the dim light, allowing her to see Saiki beside her. He was deathly pale, and his chakra was a faint, guttering candle.
"Saiki... Saiki, can you hear me?!" Tsume's voice was a frantic, trembling mess. She tried to shake him awake, but he remained motionless.
It was the hour before dawn. The sky should have been lightening, but the heavy storm clouds turned the world into a landscape of grey and black. There was no sound but the screaming wind.
The cold and the silence, coupled with Saiki's lack of response, drove Tsume to the brink of panic.
She pulled him into her arms, checking his pulse and breathing. They were weak, but steady. She let out a sob of relief.
His heart was beating, but his chakra was a storm of glass shards.
The Tailed Beast Ball hadn't hit his flesh, but the "backlash" from the Auspicious Cloud being struck before it was fully manifested had been catastrophic. It had shattered his internal stabilization.
It was like a martial artist having their cultivation interrupted at the most critical moment. Saiki hadn't perfected his Dao yet; until then, he was vulnerable to this kind of "rebound" effect.
Tsume wasn't a medic. She could only rely on her instincts and battlefield experience.
She scanned the ridge. The priority was shelter and fire. She needed to get him out of the wind.
She tried to hoist him up, but she let out a grunt of surprise. Saiki was heavy.
She had noticed it during their previous mission, but he seemed even denser now.
Despite being a head shorter than her and still technically a child, he weighed more than a fully grown man. Tsume wondered if he was wearing some kind of invisible lead weights.
The reality was simpler: for a child to possess strength and speed that dwarfed a Jonin's, his bone density and muscle fibers had to be astronomically higher than a normal human's. He was simply built like a tank.
A civilian woman would have found him impossible to lift, but Tsume was an Inuzuka. She drew a deep breath and hoisted the boy onto her back.
During the escape, Tsume had only been stunned. Saiki had taken the full brunt of the trauma to ensure her safety.
He had utilized a "Reverse Summoning" technique to flee.
Saiki was a genius, but he hadn't actually signed a contract with a summoning realm yet. He had attempted a blind jump with a Reverse Summoning formula.
The result was predictable: the destination was random. They were lucky they hadn't ended up in the vacuum of space or the bottom of the ocean. Being tossed through a spatial "washing machine" until they passed out was a merciful outcome.
Tsume found a cave—likely a temporary outpost for mountain hunters. It had a low stone wall at the entrance to break the wind.
She found a stash of dry wood left by previous travelers. Within minutes, she had a roaring fire going. The light drove back the shadows and took the edge off the biting cold.
As the temperature in the cave rose, Tsume watched Saiki's face. His breathing was smoothing out, and a hint of color was returning to his cheeks. Her heart began to settle.
She wasn't a master, but she knew the basics.
However, a quick diagnostic revealed the truth: Saiki was suffering from severe internal trauma and a total collapse of his chakra equilibrium.
She pulled a high-grade "Heart-Protecting Pill" from her emergency kit and forced him to swallow it. It was all she could do.
In the ninja profession, everyone carried medical supplies. Bandages and styptics were standard, but these elite "emergency" pills were different. They were designed to provide a massive boost to vitality or to stabilize a failing heart.
But there was a problem. These pills were "Yang-heavy"—they were stimulants designed to jump-start a dying system.
For a normal ninja, it would have worked. But Saiki was a cultivator.
His Pre-natal Qi was normally a balance of Yin and Yang. After his session with Tsunade, he had become a being of "Extreme Yang and Extreme Yin." The balance was delicate.
The injury had caused his Yang Qi to spike as his body tried to heal itself, while his Yin Qi—his internal cooling and stabilizing force—was suppressed and weakened.
He was currently a walking furnace. His skin looked cold, but his internal temperature was skyrocketing. His meridians were screaming.
In simpler terms: his body was burning its own life-force to repair the damage. His Yang energy was already at a lethal level.
Feeding him a "Yang-heavy" stimulant was like throwing a gallon of gasoline onto a raging forest fire. The Yin-Yang balance in his body didn't just tilt; it shattered.
Left alone, Saiki could have slowly used his own power to restore the equilibrium.
But now, his "kidney water" was boiling and his Yang fire was erupting. His temperature spiked from a mild fever to a localized sun.
Tsume couldn't distinguish between "Yang Excess" and "Yin Excess"—to her, he just looked weak and feverish. She thought she was helping him, but she was accidentally pushing him toward a total meltdown.