Chapter 667 Mutation
Chapter 667 Mutation
Zhang Hai, on the other hand, was in charge of the toxins and chakra mutations. He used his understanding of the nature of the soul and chakra, as well as his knowledge of various forbidden techniques, to try to analyze the strange energy fluctuations within Bai Ya's body and the toxins that might be contained within them.
As the research deepened, Zhang Hai clearly felt that the rapport between the two was rapidly increasing. Tsunade no longer maintained the same strong wariness and rejection towards him as she had initially. Although she still occasionally showed impatience towards him, that aversion to "heretical paths" had largely dissipated, replaced by respect for a fellow believer, and even a hint of subtle dependence. Their conversations became more fluid, and their intellectual exchanges became more frequent and efficient. Tsunade would even unconsciously offer him a relaxed smile, which made Zhang Hai feel an unprecedented sense of harmony and comfort.
While researching toxins, Zhang Hai also began to reflect on the limitations of his previous toxin attacks. He recalled past encounters with powerful ninjas where his toxin attacks, though capable of inflicting massive damage, were easily neutralized by their detoxification techniques or chakra resistance. "My previous toxin attacks, while powerful, were too direct, making them easy to detect and counter," Zhang Hai muttered to himself, a thoughtful glint in his eyes. "Unless it's a large-scale, indiscriminate toxin attack, its effectiveness against individual powerhouses is greatly diminished."
Tsunade heard Zhang Hai's whisper, stopped what she was doing, and looked at him. "That's true. There are many ninjas in the ninja world who can cure all poisons, and some have such strong physiques that they can resist toxins themselves. Some special chakra nature transformations can even eliminate toxins."
Zhang Hai pondered for a moment, when a bold and insane idea suddenly surfaced in his mind. He looked at Tsunade, his eyes flashing with a strange light. "Tsunade, do you think it's possible to allow medical ninjas to cultivate toxins within their bodies, like Hanzo, and combine them with their own elemental chakra to create a unique attack method?" He was referring to Hanzo, the demigod of Amegakure, whose body carried potent poison, imbuing his attacks with toxicity.
Upon hearing this, Tsunade frowned, her expression turning serious. "That's absolutely impossible!" She rejected Zhang Hai's suggestion without hesitation. "Hanzo's situation is unique. He has a special constitution, having grown up in a highly toxic environment since childhood. He possesses unique antibodies that allow him to coexist with toxins. Moreover, the toxins he uses are not ordinary toxins, but are related to his bloodline limit."
She continued, "Medical ninjas primarily focus on healing, and their constitutions are generally inclined towards purity and recovery. Allowing them to harbor poison within their bodies would undoubtedly be self-destructive. Even if forcibly trained, it would cause irreversible damage to their bodies and might even shorten their lifespan. Moreover, developing a toxin that doesn't conflict with their own constitution, perfectly integrates with chakra, and possesses powerful offensive capabilities would require immeasurable effort, time, and resources. It's not something that can be achieved in a short time." Tsunade's words were resolute, directly extinguishing the spark of madness in Zhang Hai's heart. She was a healer and would never allow such a violation of life ethics to occur.
Tsunade's strong denial of having poison in her body instantly cooled the sliver of madness in Zhang Hai's mind. Looking at Tsunade's serious and resolute face, he knew that with her medical ethics and respect for life, she would never conduct such unethical human experiments. That was not her way, nor would she allow such actions.
“You’re right, Tsunade.” Zhang Hai nodded slightly, acknowledging Tsunade’s point of view. “Given your understanding of medical ninjutsu and your respect for life, this kind of research does indeed run counter to your principles.” He knew that even if he forced her to comply, Tsunade would never compromise. What he needed now was Tsunade’s unreserved cooperation, not to provoke her resentment.
Therefore, Zhang Hai completely abandoned the research direction of hiding poison in the bodies of medical ninjas. The two of them refocused on the research that White Fang had conducted before his death, continuing to delve deeper into their respective areas of expertise.
In his spare time, Zhang Hai would practice his swordsmanship in the open space of the laboratory. What he held in his hands wasn't a real blade, but a light blade formed from chakra, sharp yet invisible. His movements were elusive; the light blade in his hands seemed alive, each swing accompanied by a sharp, piercing sound, each strike precise and swift. His swordsmanship had transcended the mortal realm, resembling an artistic mastery of space and power.
Although Tsunade always complained, "Hey, don't practice your swordplay here! What if you damage my equipment?!" her actions contradicted her words. Not only did she not stop Zhang Hai, but she also set aside time each day for him to practice his swordsmanship freely within the laboratory's barrier. Occasionally, she would even put down her research and stand aside, observing Zhang Hai's swordsmanship with great interest, sometimes offering a few pointers, or even transforming into a phantom to engage in brief sparring sessions with him.
Tsunade's actions changed Zhang Hai's perception of her once again. He had initially thought Tsunade was just a short-tempered, gambling-addicted medical ninja, but as they spent more time together, he discovered that Tsunade was far more complex and charming than he had imagined. Her reverence for life, her cherishing of friendship, and her unknown gentleness were all gradually influencing Zhang Hai's ancient and indifferent soul.
A vague thought quietly sprouted in Zhang Hai's mind—perhaps his relationship with Tsunade was more than just that of research partners? But as soon as this thought surfaced, he quickly suppressed it. He felt it was too impossible; after all, he was just a soul, while Tsunade was a living, breathing person. Such a thought was too extravagant and too far-fetched for him.
Besides Tsunade, there are other "guests" who visit Zhang Hai from time to time. Among them, the most frequent visitor is Minato Namikaze.
Whenever he had free time after completing a mission, Shui Men would come to this underground laboratory. He always had a sunny smile on his face and would share interesting stories from the missions with Zhang Hai. Whether it was the interesting people he encountered or the ingenious process of completing the mission, he would tell them vividly, as if he regarded Zhang Hai as a long-lost friend.
On one occasion, Minato even brought Kushina along. As soon as Little Chili Kushina entered, she saw Zhang Hai's illusory figure. Her red eyes widened instantly and then exploded like firecrackers.
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