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Back in Sunagakure, far from the front lines' earth-shaking battle cries and ever-taut nerves, life suddenly slowed its pace. For Sayo, however, this was not idleness but a precious period of consolidation—turning battlefield gains and insights into tangible power.
The basement of his home, after simple reinforcement, became his private training ground and workshop. The upgraded entry-level Natural Energy Body Tempering Furnace was restarted, emitting a soft, life-filled milky halo. Almost every night Sayo stepped inside, feeling the gentle yet vast natural energy flow like the finest trickle into every cell.
This strengthening was a silent, continuous refinement. He could clearly sense his chakra coils growing tougher and broader; physical strength, reaction speed, even the acuity of his five senses improved steadily. The mental fatigue and trauma of war were likewise soothed by this primal life energy, leaving his mind clearer and tougher.
On the workbench beside the furnace lay scrolls covered in complex runes and precise schematics. The miniaturization plan for the furnace had reached a critical phase. Sayo was wholly absorbed; the soul of his past life as a mechanical engineer burned bright.
He calculated the miniaturization limits of energy circuits again and again, compressing the Spirit Siphoning Seal array to its limit. Each problem could daunt the greatest Puppeteer, yet Sayo relished every tiny breakthrough.
At the merit-exchange office, Sayo bypassed flashy tools and traded for several B-rank Wind and Earth Style scrolls. Every afternoon, the training grounds echoed with his progress.
Wind Release: Wind Cutter! – A sharp blade of air sliced boulders with molecular precision.
Earth Release: Earth Spear! – Sharp rock pikes burst from the ground, turning terrain into a death trap.
Magnet Release: Iron Sand Drizzle! – His control grew finer, the black sand shifting between absolute defense and piercing offense.
The Mirage platform was fully repaired and optimized. With higher compatibility for the Natural Energy Core, it achieved steadier levitation and greater mobility. Sayo's unique fighting style was maturing: using Magnet Release for core control, Wind and Earth for area denial, and the Mirage as a high-speed tactical hub.
Yet as his strength rose, a grander dream sprouted. Whenever he saw the Mirage hovering, he thought: What if I could build something larger?
The idea came from the "Gundam" models of his past life. In this world of chakra, he saw a real chance. He began imagining a colossal outline: a sleek, metal body with a power core far beyond the Mirage's, able to gallop across the land and soar through the sky.
He knew the path would demand oceans of resources and unimaginable technical breakthroughs, but the ultimate power it represented captivated him. Daily training remained tedious yet fulfilling, but every chakra refinement now served this distant, "Gundam" goal.
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