Chapter 5.

Sai is still a baby and I have no one to learn about ink manipulation from. Instead of conveniently copying texts from libraries, I'll have to send a clone.

Fuin is beyond my understanding and without instructions I have no idea what I need to do with it. I really don't want to leave this critical layer of knowledge for later. Digging into archives for knowledge, as it turns out, is a very risky business. All important objects are heavily guarded, since not only is the war not over yet and the peace treaty with Kumo has not been signed, but the Fox successfully rolled out Konoha 2.5 years ago.

The Uchiha seem to have settled near vital points for the village. Each building has three or four patrols crossing each other. Social engineering will be safer.

by way. Let's ask the talkative genins. If any of them achieves success in something, they will not hesitate to boast about it.

I'm standing there, catching the graduating genin. Oops... Kabushi, Yakushi Kabuto... And I didn't know he graduated at ten. He's probably already in Danzo's clutches... My heart is constricted with pity for the boy, I wouldn't wish it on anyone to end up in a jar with spiders in the middle of Danzo, Sasori and Orochimaru. I drive my thoughts away, an unpleasant numbness grips my heart and head from the usual neurotic suppression of emotions. I'm going to shake him into a basic understanding of fuinjutsu. Here, all kinds of technicians are churning out crap and that's all same number. It is not science and not engineering with modular approach. The chakra is individual and bears the imprint of its owner. Even mood can affect it. No one will forbid experimenting, and no one will tell secret recipes, but I need safety precautions.

Yakushi spent 20 minutes of his time on me and told everything as it is, without making allowances for age. He is still decent, not spoiled and not broken by the machinations of the scarred mummy. He still wants to protect the children, the orphanage and the foster mother. He is still whole. Well, hold on, Danzo, I will yet break your rotten head. As far as I understood from Yakushi's explanations, fuin is an art similar to a cross between the purity seals from Warhammer 41st Millennium and yin/yang release. All more or less respectable masters can put seals by touching and the seal can be presented in a compressed form, and therefore ink and paper are almost unnecessary and represent only a fixer for chakra from weathering and training crutches for consistent study or a predictable result in the case of mass production and involves the use of other people who do not possess fuin to the proper extent. When drawing a seal, you feed it with yin - an idea and a strong image, and when activating it, you do not just push chakra, but starting from the edges of the sheet, you go with chakra to the center through code words-images that are already saturated with someone else's yin, which reacts to your yang component. Seals with pre-stored chakra have their own expiration date - the chakra from them simply evaporates and more energy is spent on activating such seals. That is why a standard Konoha chunin has only 5 explosive seals in his set. After a couple of weeks of storage, the seal will run out of steam and will have to be recharged again, and not everyone has enough reserve to recharge it. A freshly baked chunin/yesterday's genin will halve his reserve for a full renewal of 5-7 explosive tags in about 13 years, and you can't "refuel" them little by little at each halt - the yin program from the master's chakra will begin to wear off and the chakra will begin to do absolutely nothing, obeying vague word-commands + someone else's chakra conflicts somewhat with the master's chakra and the refilled seal lonely Yin in the seal will not survive for long either. So by the time the shinobi reaches the mission site, waits for trouble and enters the battle, his seals will be either weakened or empty, and no one wants to take risks. So the fighter takes as many seals as he can refill himself.

Having thanked the hurrying Kabuto, I went on. After his explanation, a lot became clear, although a lot remained unclear. Okay, the seals on the jin - chuuriki, they feed on the owner's chakra or indirectly through the filter, the bijuu's chakra. How did the master's yin not burn out and the seal not go haywire? Maybe the sealing ritual uses genjutsu on the patient to bind the jinchuuriki's yin chakra into the seal? What was Minato's seal eating on Obito for all 17 years? How was it not noticed? Did it "pupate" or something like the prosthesis with Naruto's chakra on Kawaki while he was sleeping? There is no owner's chakra in the information field and the seal goes into hibernation, but he appeared from the world of the dead and voila? All later.. I think I know where to go for knowledge on iryoujutsu. Wait for me, shelter