"Natural Energy Crystal Stone? I'm not sure, but I'll ask Katsuyu for you."
Tsunade was also seeing such a thing for the first time, but she used the Summoning Jutsu to help Uchiha Yoichi ask about it.
Bang!
A puff of smoke appeared, and then a half-meter-long Katsuyu appeared in front of Uchiha Yoichi.
After appearing, Katsuyu said to Tsunade, "Lady Tsunade, is there something you need from me?"
"Katsuyu, do you recognize this, or is there anything similar in the Shikkotsu Forest?"
Upon hearing Tsunade's words, Katsuyu moved its tentacle eyes closer, observed, and sensed for a moment before saying, "A stone containing natural energy? There were originally many in the Shikkotsu Forest, but I threw them all into the pool."
Tsunade asked upon hearing this, "The pool? The acidic pool for training Sage Mode?"
"How disrespectful, Lady Tsunade, that's for contractors to train in Sage Mode. It's the Sage Pool where my mucus is infused...."
Katsuyu immediately retorted but then waved its tentacle and said, "Although batch after batch of such stones are thrown into the pool over time, there should be another batch gathered recently. Do you need them, Lady Tsunade?"
"They are easy to preserve while they're still stones, but once made into the Sage Pool, they cannot be taken out of the Shikkotsu Forest."
Hearing this, Tsunade looked at Uchiha Yoichi but did not speak.
Uchiha Yoichi spoke, "Yes, I want to use these to refine elixirs."
"Elixirs? I didn't expect the Uchiha Race's elixirs to be refined by you. I'll have to check it out later."
Tsunade said, as she also had extensive knowledge of medicine. After returning, she had witnessed the secret medicine of the Uchiha Race, and she did not expect it to be made by Uchiha Yoichi.
Those three simple medicines previously required help from other medical ninjas to refine, and now they could refine such powerful secret medicines.
"Thank you, Katsuyu. If it's not very important to you, please give us some."
"Understood, just summon me tomorrow, Lady Tsunade; it's mainly for the contractors' use, but since you're the only contractor in Shikkotsu Forest, the Sage Pool isn't being used."
Katsuyu said with a sweet voice, though Uchiha Yoichi looked around and couldn't figure out how Katsuyu was speaking.
Getting a batch of Stones of Nature, once Katsuyu left, Uchiha Yoichi, to express his gratitude to Tsunade, gave her a massage for a while.
However, Tsunade didn't appreciate the kindness. After just a short massage, she started murmuring 'shy little ghost, shy little ghost~,' and without considering Uchiha Yoichi's earnest effort, she put on her clothes and hurried him out.
"Damn shy little ghost...."
Tsunade lay on the sofa for a while before slowly recovering. Glancing at the clock, over two hours had passed, and she made a secret decision in her heart that next time she surely won't let him be this indulgent when she's busy.
'Ugh~'
Tsunade suddenly felt a bit nauseous, but she quickly recovered. She didn't think much of it, but inwardly cursed the shy little ghost again for carelessly using that to plug her mouth.
If he's daring enough to do it again next time, she'll bite hard!
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After leaving the hospital, Uchiha Yoichi returned contentedly to the clan's alchemy room.
It essentially contains all the medicinal materials the Uchiha Race can collect, and the preservation equipment is extremely refined. With no other matters recently, Uchiha Yoichi plans to first attempt to improve some fourth-grade elixirs and see if there is a significant difference between these natural energy crystal stones and demon cores.
"I'll start refining from healing and support elixirs; those that increase power... Chakra elixirs seem ineffective for ninjas, only temporary."
Uchiha Yoichi contemplated, thinking that the Ninja World is different from the Dou Qi Continent, where fighters can refine the medicinal power of elixirs into power with their Qi of Battle and retain it.
Ninjas lack this ability, but maybe he can refine some for Tsunade to consume, as her Yin Seal can store all the excess Chakra. As for other ninjas, they can only consume Chakra-increasing elixirs as Soldier Pills.
Support elixirs are simpler than healing ones, and healing elixirs are simpler than those that increase cultivation, so Uchiha Yoichi chose two straightforward elixirs to refine.
The Beast Power Pill and Small Recovery Pill. The former greatly enhances the user's strength, nearly comparable to Monster Strength in the Ninja World, while the latter is excellent for healing injuries.
It's almost like continuous Mystical Palm Jutsu, and the healing effect for both internal and external injuries is even better than Mystical Palm Jutsu, equivalent to carrying two Medical Jonin into battle against the enemy.
With Uchiha Yoichi's foundational knowledge in alchemy, he quickly identified the necessary medicinal materials for the two types of elixirs; their properties are similar, easy to fuse after refining, offering a chance for successful improvement.
After selecting the materials, Uchiha Yoichi quickly got to work.
Meanwhile, the development in Konoha Village continued.
Compared to other Ninja Villages, Konoha Village's development is probably the fastest; even with the economy of the Land of Lightning and Hidden Cloud Village being decent, they rely on Daimyo Mansion's funds and continue enhancing military, training ninjas, etc., following old patterns.
In the Hidden Rock Village, anti-war sentiments emerged. Onoki knew that Hidden Cloud Ninja were preparing armaments, and he wanted to do the same in the Hidden Rock Village; however, other high-level Hidden Rock Ninja opposed, and mid and lower-level Hidden Rock Ninja had been tense for a long time.