Rinto had just archived the body limit data of Eight Gates Released Formation and followed the underlying logic of body energy to complete the corresponding parameters of the Yin-Yang Release dual-anchor model. There was a very light knock on the door. The force was restrained and even the vibration of the barrier was minimal. It was completely different from the previous whirring noises of master and disciple Might Guy.
He frowned slightly and raised his hand to remove the soundproof blockade on the courtyard door. His tone was still cold as usual, without any extra emotion. "If you have something to say, just say it. Don't waste time at the door."
The door of the courtyard slid open silently, and standing at the door was Kurenai Yuhi. She was wearing a plain ninja uniform, her hands gently protecting her lower abdomen, her face was pale with a hint of pregnancy, and there was unconcealable exhaustion in her eyes, but she still stood upright, facing Rinto bowed slightly, his tone was polite and reserved, for fear of disturbing him. "Mr. Rinto, I'm sorry to bother you. I'm Kurenai Yuhi, and I'm here to ask you to help me solve two problems related to Genjutsu."
Rinto's eyes swept over her belly, and then fell on her slightly slack mental fluctuations, and he understood in an instant. He had seen the news of Asuma's death in battle in the war injury cases sent to the hospital, and also knew that she was pregnant. However, these things had nothing to do with his research, and he never took it to heart.
"Come in and say, stand at the door and make a noise." Rinto stepped aside, turned and walked back to the laboratory, without any intention of greeting, "Speak directly about your problem, don't beat around the bush."
Kurenai Yuhi hurriedly followed, and cautiously Earth Flow entered the laboratory. Her eyes scanned the table full of formulas, test tubes and files, and she even walked more lightly for fear of breaking something. She had heard of Konoha for so many years. Rinto's temperament - only respects research and data, and has no regard for worldly sophistication. She may not even give Hokage face, let alone Jonin. If she hadn't been really desperate, she would never bother this reclusive researcher.
The two stood next to the experimental table, and Kurenai Yuhi lowered his voice and explained his dilemma clearly. Every sentence went straight to the pain point without any unnecessary politeness. "I am a ninja who specializes in Genjutsu. The core of Genjutsu is Yin Release Chakra and the control of mental power. However, the risk of fighting Genjutsu is extremely high. Once the technique is rebounded and broken by the opponent, there will be a strong backlash, ranging from mental trauma and Chakra disorder to direct coma or even permanent mental damage."
She paused, her fingertips clenched unconsciously, and her tone became more sincere. "When I fought against Uchiha Itachi before, I suffered a huge loss from Genjutsu, leaving a hidden crack in my spiritual core. Lady Tsunade's Medical Ninjutsu It can relieve physical discomfort, but it cannot repair old mental injuries. Now that the threat of Akatsuki is getting closer and closer, it is inevitable to face top Genjutsu opponents during war. I am afraid that my Genjutsu will have problems, and I am even more afraid that the backlash will hurt the child in my belly."
"Lady Tsunade said that in the entire Konoha, and even in the entire Shinobi World, only you can solve the problem of mental protection and repair. So I took the liberty to come here and would like to ask you to help me make two plans: one can defend against Genjutsu backfires, even if the spell is broken, it will not damage my mental core and body; the other set can stabilize and strengthen my mental power, so that my mental power will not be unstable or Genjutsu lose control due to physical changes during pregnancy."
After saying that, she bowed to Rinto again, with a very low posture. "As long as you can help me solve these two problems, I can agree to any conditions. Whatever data and cooperation you need, I will absolutely satisfy you."
Rinto finally had a hint of interest in his eyes.
His previous research on Yin Release mostly focused on the mental energy anchoring in the Senjutsu system and the mental defense of the laboratory barrier. At most, he obtained some scattered data on Genjutsu injuries from hospital cases. And Kurenai Yuhi is the top Genjutsu ninja of Konoha. The author has more than ten years of Genjutsu training, battles, and complete records of backlash injuries. It is also a rare sample of mental power fluctuations during pregnancy - the linked changes in mental energy (Yin Release) and physical energy (Yang Release) due to pregnancy. It is a first-hand material that he has never come across before and is of great research value.
Not to mention, the complete mechanism of Genjutsu's backlash and the entire process of Yin Release Chakra's reverse impact on the spiritual core. These data can help him completely complete the underlying model of Yin Release and spiritual energy, and can even lay an important foundation for subsequent research on soul rules.
But his face didn't show any extra emotion, and he still had that cold look. He made a condition first, leaving no room for negotiation. "I can make a plan for you. But there are two prerequisites. First, all the training records since you started practicing Genjutsu, Genjutsu The core flow logic of the technique, the details of each backlash injury, and all the medical cases should be given to me completely, without missing a single trace. Including the daily records of your physical changes during pregnancy and mental fluctuations, you should also give them to me simultaneously."
"Second, every time you use the protective configuration and mental strength strengthening plan I give you, you must accurately record all data: the consumption changes released by Genjutsu, the circulation efficiency of Yin Release Chakra, whether there is a backlash, the defensive effect when the backlash occurs, the fluctuation of mental power, and even the changes in mental power in daily conditions. Summarize it once a week and send it to me in full."
He paused and drew a clear line in a calm tone. "I am not doing this to help you prepare for war, nor to care about the safety of you and your children, but just to get the research data related to Yin Release and mental power. If you can do it, stay and do a comprehensive test; if you can't, you can leave now."
"I can do it! I can definitely do it!" Kurenai Yuhi agreed immediately without even thinking about it, and even quickly took out a thick stack of files that he had prepared long ago from his arms. "I have brought all the training records, backlash cases, and previous medical files that you asked for, and there is no omission. I will make sure that the subsequent records are accurate enough for every Genjutsu release, and there will never be any omissions, and they will be sent to you on time."
She knew very well that to her, these records were just past experiences and pains, but to Rinto, they were the basis for making plans. What's more, no one in Konoha could solve her problem. No matter how harsh Rinto's conditions were, she had no room for hesitation.
Rinto took the stack of files and flipped through two pages. The records were extremely detailed, from the Chakra control records when she first came into contact with Genjutsu, to every The details of Genjutsu's application during the battle, as well as the physical and mental changes after each backlash, and even the conditioning prescriptions Tsunade gave her were clearly written and fully met his needs.
He put the file on the table and pointed to the array disk next to it that was specially used for mental power testing. "Stand up, don't move, don't deliberately operate Chakra, and don't resist the detection of the array disk. I want to do a comprehensive mental power, Yin Release Chakra, and physical status test. If you don't understand your situation thoroughly, the plan I make will be useless."
"Okay." Kurenai Yuhi responded immediately and stood carefully in the center of the array. Following Rinto's request, he relaxed his body and restrained the Chakra fluctuations that he had deliberately suppressed.
Rinto raised his hand to activate the array disk, and the light blue Yin Release Chakra mask slowly rose, covering Kurenai Yuhi's whole body. Different from the previous physical tests he did for Kai and Rock Lee, this set of array disks was specially designed for him to use mental power and Yin Release The detection design will not cause any impact on the body, but can accurately capture the subtlest fluctuations in mental power and the circulation path of Yin Release Chakra. It can even penetrate into the spiritual core level and clearly project all hidden injuries and cracks onto the stone slab next to it.
The inspection lasted for a full hour. Rinto stared at the real-time data beating on the slate throughout the entire process. The charcoal pencil in his hand kept recording the key parameters and problem points one by one. He accurately captured the details that Kurenai Yuhi himself was not aware of.
After the inspection, the root cause of Kurenai Yuhi's problem was completely presented to him:
First, there are indeed three very small cracks in her spiritual core, which are all old injuries left by Genjutsu's backlash in her early years. She usually seems fine, but once she encounters a high-intensity Genjutsu confrontation, or her mental power fluctuates violently, these cracks will expand, causing Genjutsu to lose control at the least, or directly causing a mental breakdown in the worst case, and even affecting the stability of the fetus in her belly.
Second, her Genjutsu system is completely "external" - all Yin Release Chakra and mental power are used to build Genjutsu and invade the opponent's spirit. There is no protection for her own spiritual core, just like a warrior who only carries a spear and does not wear any armor. Once the spear is hit back by the opponent, she can only resist with her body. This is the core reason why she is seriously injured every time she fights back.
Third, the physical changes during pregnancy caused continuous fluctuations in her Yang Release body energy. Yin Release and Yang Release already depended on each other. The instability of their body energy directly led to uncontrollable fluctuations in her mental power. Not only did Genjutsu's accuracy decrease, but the risk of backlash also increased several times.
Fourth, her Yin Release Chakra circulation path has several natural stagnations at the nodes of Genjutsu release and recovery. Once Genjutsu is cracked, the Chakra rushing back will form a congestion here, amplifying the power of backlash and aggravating mental damage.
After figuring out all the problems, Rinto didn't pause at all, and immediately began to design two sets of plans, strictly corresponding to the two core needs of Kurenai Yuhi: Genjutsu's exclusive defense configuration for backlash, and the mental strengthening and stabilizing system adapted to the state of pregnancy.
The first thing he started designing was the core Genjutsu backlash defense configuration.
This configuration is completely different from the global mental defense barrier he made for the laboratory before. The barrier is to prevent Genjutsu intrusion and mental detection from the outside world, and what Kurenai Yuhi needs is exclusive protection to prevent "her own spells from being bounced back and impacting herself in reverse". It also does not affect her normal release of Genjutsu and cannot reduce the power of her Genjutsu. This is the core difficulty of the design.
Rinto completely abandoned the conventional "mental barrier hard resistance" idea and designed a three-layer nested adaptive defense system that perfectly adapts to Genjutsu's release and backlash scenarios:
The first layer is the release link isolation module. He designed a one-way communication configuration for Kurenai Yuhi's Yin Release Chakra circulation path. When she releases Genjutsu, Yin Release Chakra and mental power can be released smoothly without affecting at all. The construction and power of Genjutsu; but once there is a reverse impact, the link will be locked instantly, immediately cutting off the link between the rebounding Chakra and her own spiritual core, avoiding the backlash from the source. This just solved the pain point of her being reversely controlled by Itachi along the Genjutsu link.
The second layer is the reverse impact buffering and digestion module. Even if part of the backlash energy breaks through the link blockade, it will enter the preset buffer cavity. The configuration will quickly dismantle the Yin Release structure in the backlash energy and dissipate the violent impact without causing any damage to the mental core and body. Even if the Genjutsu rebounds at the level of Weasel, it can dissipate more than 90% of its power.
The third layer is the disorder Chakra sorting module. If Genjutsu is out of control and its own Yin Release Chakra is disordered, the configuration will automatically start to quickly sort out the turbulent Chakra in the body, stabilize mental fluctuations, avoid implosion-type mental damage, and at the same time prevent Chakra disorder from affecting the fetus in the abdomen.
More importantly, this configuration is completely adaptive and does not require deliberate control by Kurenai Yuhi. It will be automatically activated as her Genjutsu is released. Even if there are distractions or emergencies in actual combat, it will work stably and will not consume any additional mental energy and Chakra. It will not increase her combat burden at all.
After completing the defense configuration, Rinto immediately began to design the second plan: a mental strengthening and stabilizing system adapted to the state of pregnancy.
He did not follow the conventional path of "forcibly increasing the total amount of mental power" - forcibly increasing her mental power would break her original balance of yin and yang, burden her body during pregnancy, and even affect the fetus. His core idea is: stabilize first, then strengthen, adapt in all dimensions, and not destroy the original balance.
The entire system is divided into three core modules:
First, the spiritual core anchoring and repair module. Targeting the three old injury cracks in her spiritual core, Yin Release was used to anchor the configuration to accurately strengthen the spiritual origin, repair the hidden cracks, and fundamentally improve the impact and erosion resistance of the spiritual core. At the same time, this module can firmly lock her mental power and will not fluctuate due to physical fluctuations during pregnancy. Even if her emotions change drastically, her mental power can remain stable.
Second, the mental efficiency optimization module. He reorganized Kurenai Yuhi The circulation path of Yin Release Chakra has corrected the stagnant nodes and nearly doubled her mental power utilization rate - the same Genjutsu consumes less mental power than Chakra, but its power can steadily increase, which not only reduces the consumption of daily practice, but also reduces the mental strain caused by long-term use of Genjutsu.
Third, the mind-body linkage balance module. Specifically for her special state during pregnancy, the Yin-Yang Release linkage balance configuration is designed to allow her mental energy (Yin Release) and physical energy (Yang Release) to form a stable closed loop. Physical changes will no longer interfere with mental power. The stability of mental power can nourish the body. Not only will it not harm the fetus, but it will also play a positive stabilizing role in the physical condition during pregnancy.
After the theoretical framework of the two plans was built, Rinto was not delivered directly. Instead, it first took the test data of Kurenai Yuhi and conducted hundreds of deduction tests in the simulation array. From the conventional Genjutsu release to the extreme Genjutsu completely rebounded and Yin Release Chakra was completely disordered. It even simulated the scene of violent fluctuations in the body during pregnancy. The parameters of the configuration were repeatedly optimized to ensure that the plan was absolutely safe and effective, without any side effects, and would not affect her Genjutsu system and physical condition at all.
It was not until the evening that the final versions of the two plans were completely finalized.
Rinto carved the core pattern of the defense configuration in advance on a special sealing talisman that can be embedded in the Chakra cycle. He also compiled the activation method of the mental power enhancement system, configuration carving steps, usage precautions, and data recording specifications into clear drawings and instructions. Even the subsequent regular calibration parameters were calculated in advance to save her from disturbing her later.
He took the things and walked out of the sterile operating room. Kurenai Yuhi had been waiting quietly in the yard, not even daring to sit down. When he saw him coming out, he immediately came up to greet him, his eyes full of anticipation and anxiety.
"Both sets of plans are here." Rinto handed the things to her with a calm tone, emphasizing the core requirements first, "For the counterattack defense configuration, I have engraved the core formation pattern into the sealing talisman. You only need to follow the instructions and embed it into the corresponding Just Chakra node will do. Genjutsu will be automatically triggered when released, so there is no need to deliberately control it. The mental power enhancement system, activation steps and precautions are all clearly written, just follow them and it will not affect your body and fetus."
"The important thing to remember is that every time you use Genjutsu and every time you activate the configuration, you must completely record the corresponding change data and physical sensations, and send them over on time every week. If there is a parameter deviation, send the data over immediately. Don't change it by yourself. I am not responsible for any problems."
Kurenai Yuhi took the drawings and sealing talismans with both hands, her fingertips trembling a little. She flipped through the contents inside, and even if she didn't understand these complicated formations and formulas, she could see that Rinto had taken all the details into consideration, even made exclusive adaptations for her special circumstances during pregnancy, and even had corresponding repair plans for the mental cracks she was unaware of.
She bowed deeply to Rinto, her tone full of heartfelt gratitude. "Mr. Rinto, thank you so much! You solved the problem I was most worried about. I will remember this kindness forever!"
"You're welcome." Rinto directly interrupted her thank you, her tone not wavering at all, "I'm just getting the research data I need. If you give me the data on time, you'll be settled. Just leave after you get the things. Don't disturb me here for my experiments."
Kurenai Yuhi responded quickly, not daring to disturb any more, and solemnly thanked her, and then quietly exited the courtyard. The moment she closed the courtyard door, her heart, which had been hanging for several months, finally fell to the ground completely.
In the laboratory, Rinto had long forgotten what had just happened. His attention was completely focused on the stack of more than ten years of Genjutsu's training records left by Kurenai Yuhi, as well as the complete mental power and Yin Release Chakra data that had just been detected.
He casually filed away the delivered plan, sat in front of the experimental table, laid out a new blank slate, and began to dismantle the underlying logic of Genjutsu, the linkage mechanism between Yin Release Chakra and mental power, and the damage principle of the backlash impact on the mental core.
These data not only filled up the research gaps in his Yin Release system, but also allowed him to touch the boundary between spiritual energy and soul rules. Before, his research on the soul only stayed at the surface damage repair, but now, through Genjutsu's manipulation and backlash of the mind allows him to have a deeper understanding of the binding relationship between "spirit-soul-body", laying a theoretical foundation in advance for the extreme cases of soul shock and mental collapse that will be faced when Pain invades later.