Uchiha Rei was dragged by Chiri to the Uchiha Clan Land to repair houses, otherwise many Uchiha would have to sleep in tents. Although Earth Release could be used to build stone houses, the inherently evil Uchiha disliked them.
Fortunately, Uchiha Rei only needed to consume some Chakra; the subsequent matters were none of her concern. This sparring session with Chiri gave Hiruzen Sarutobi an opportunity to arrange Uchiha Rei for work ahead of schedule.
He had her intern in the Interrogation Department first, then transfer to the Cipher Department after three months, and later to the Intelligence Department—it was indeed a packed schedule.
Upon arriving at the Uchiha Clan Land, the construction site's basic infrastructure was already complete. Next, the construction team, Uchiha Rei, entered the field.
Uchiha Rei originally planned to just build some identical single-family homes, but Chiri and Shoya clung to her legs, insisting that she follow the blueprints exactly.
The moment Uchiha Rei saw the blueprints, she understood that these people had conspired together to build more modernly designed wooden house courtyards.
Each courtyard was uniquely designed with flying eaves, upturned corners, and winding corridors. What would have taken a few seconds now wouldn't be finished in less than three or four days.
After much debate, Uchiha Rei eliminated some purely decorative structures. The main structures were then easier to manage.
Even so, Uchiha Rei only completed the main structures by the afternoon of the second day. As for other furniture and interior decorations, they were not her responsibility.
After the houses were built, Uchiha Rei planned to rest for two days, but the Anbu assigned by the Third Hokage kept urging her to go to work.
Even when she went to eat hot pot buffet with Kushina, he stood beside them, mechanically urging her. Finally, unable to bear it any longer, Uchiha Rei beat him up and then went to work.
The Interrogation Department was Morino Ida's territory, located near the Anbu headquarters and also underground, dark and damp, filled with fierce-looking individuals.
When Uchiha Rei walked in wearing her Anbu uniform and mask, she saw that every cell contained prisoners bound like mummies with sealing cloths.
If she hadn't seen the Divine Tree roots and people hanging, Uchiha Rei would have thought she had walked into the world after the Infinite Tsukuyomi.
Morino Ida personally met Uchiha Rei and introduced her to the work of the Interrogation Department, which was actually very simple: learn Mind Reading Technique and then read the minds of these prisoners.
Since no one's will can remain at its peak indefinitely, continuous Mind Reading was required to obtain more information.
However, using Mind Reading Technique consumed a lot of mental power and Chakra, so everyone read a specific prisoner according to a shift schedule.
Additionally, they had to learn Interrogation Ninjutsu, because torturing the enemy's mental will through Interrogation Ninjutsu could yield more information. However, while Interrogation Ninjutsu could torture enemies, the user suffered the same pain.
Interrogation Ninjutsu was safer, only requiring the endurance of pain, but it was precisely this endurance of pain that few could sustain.
Most people still learned Mind Reading Technique. If one also knew Genjutsu, it would be even better, as it could assist in more easily extracting information.
Both Mind Reading Technique and Interrogation Technique belonged to Yin Release Forbidden Technique. These primarily relied on Yin Release to connect with the enemy and produce effects.
It wasn't as convenient as Genjutsu, but Genjutsu wasn't that easy to learn either, as seen from the strength of Kurenai Yuhi, who specialized in Genjutsu.
Without a Bloodline Limit, it was truly difficult for Genjutsu to reach the Jonin level. Genjutsu and Yin Release Forbidden Technique both belonged to methods of using Yin Release.
However, their directions were somewhat different. Genjutsu tended more towards dispersion and imaginative construction, making Genjutsu more realistic and difficult to detect.
Yin Release Forbidden Technique, on the other hand, tended towards condensation and quality improvement, to achieve even more miraculous effects, such as Mind Reading, Shadow Possession Technique, and Mind Body Switch Technique, and so on.
Uchiha Rei directly received a copy of Mind Reading Technique and Interrogation Technique and started doing odd jobs. That's right, odd jobs. Newcomers needed to do odd jobs to understand the process and master one of the techniques before they could officially start working.
Mind Reading Technique and Interrogation Technique were Yin Release Forbidden Technique that Uchiha Rei had little exposure to, and she was very interested. They involved the nature and form changes of Yin Release.
Uchiha Rei's Yin Release attainments were focused on Genjutsu. Yin Release belonged to the series of creation from nothing, simply meaning you could have whatever you wanted, being the most idealistic.
Uchiha Rei felt that the Yin Release Forbidden Technique were somewhat like the techniques of the Ghost Immortals she read about in Yang God, seemingly earth-shattering, but in reality, just ten thousand eight thousand evolutions of thought.
The mind acting upon reality, or rather influencing reality, which is the evolution of the inner scene into the outer scene, reminded Uchiha Rei of 'Xiantian governs the universe, transforming oneself into a king through the changes of the universe.'
The hand seals for Mind Reading Technique were not complex, but they required a Yin affinity talent and even the ability to use Yin Release Chakra.
This posed little difficulty for Uchiha Rei. The complex part was making her own Yin Release Chakra resonate at the same frequency as the enemy's mental energy.
This way, she could read the enemy's memories. This involved the nature change of Yin Release. Simulating the enemy's mental energy fluctuations was not complicated.
Uchiha Rei's Genjutsu had already progressed to this point, primarily to prevent enemies from noticing they were caught in Genjutsu, so Uchiha Rei already met this requirement.
The last requirement was that the Yin Release Chakra must be sufficiently condensed, otherwise, it could easily be interrupted by the enemy's resistance and mental fluctuations.
Uchiha Rei had not practiced this part of the knowledge yet, but it wasn't too difficult. Her Yin Release attainments were already high, so she could achieve it with a few more practice sessions.
This had a similar effect to Uchiha Rei connecting with others using Yin Release Chakra for Genjutsu, and the Puppet Master's puppet strings also involved this operation of condensing Chakra threads.
Uchiha Rei sent a Shadow Clone to do odd jobs and began practicing Mind Reading Technique herself. Learning this was very useful, and Uchiha Rei, aspiring to be an all-rounder Ninja, naturally wouldn't miss out.
In fact, it wasn't easy to learn these two Yin Release Forbidden Technique just by entering the Interrogation Department. One needed to pass a Mind Reading test to confirm they weren't an enemy and have sufficient merits.
Uchiha Rei was naturally different. As the Hokage's disciple, her wartime achievements from the Third Shinobi World War were enough for her to learn any Ninjutsu she could learn.
Uchiha Rei learned Mind Reading Technique in one morning. Unfortunately, there were no test subjects, because if Mind Reading Technique was not used properly, it could easily cause mental injury to oneself and death to the interrogated person.
Next was learning Interrogation Technique. Uchiha Rei felt this technique should be called an S&M technique. Recalling Morino Ibiki's later torture of a loli, Uchiha Rei felt this technique was improper.
However, coincidentally, Uchiha Rei wasn't a proper person either. What proper person would change from male to female? Unfortunately, this technique could only bring pain, not pleasure.
This technique had no other difficulties. The only thing was that when connecting to and using it on an enemy, the user would also suffer the same mental pain through the Chakra connection with the opponent.
That's why this technique was so useless. Fortunately, this Yin Release operation of constructing a torture space had its merits, and Uchiha Rei also wanted to learn it, as it would help with Genjutsu.
This technique allowed one to set their own torture methods, such as dismemberment or boiling, etc., but naturally, only if you yourself could endure it.
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