Chapter Text
Bellow is the so called COMPLETE MANUAL TO CURSES that was in the JJk Fanbook, which I believe came out just after the Shibuya incident finished in the Manga as the page about Hakari talks as if he was yet to be introduced.
A lot of interesting stuff tbh, all that could be useful for use in a Fic I think, (To find this look up JJK Fanbook and look around for what works for you, don't commit crime tho, would be uncool of u (you wouldn't download a car, would you?)). But what I wanted to focus on before we got into it is just the Zenin Clan and their position in society.
It is interesting to note that the Zen'in continued the tradition of the Fujiwara in order to keep their power.
As we see in the flashback to the Heian during [Yorozu Vs Sukuna], the Fujiwara allow Yorozu to fuck around as much as she wants within the clan so that they could get a hold of the powerful construction technique as part of their bloodline (considering Mai, they [probably succeeded]).
Personally I think it's OOC for Yorozu to have kids -considering the obvious- so it's more likely that along with sorcerers themselves they also drag in their families for more access to their bloodline.
That or Yorozu was part of a clan or something that was absorbed into the Fujiwara which had construction as their hereditary technique, which makes her not the first user, but just one of the users of construction.
While all of this is probably obvious, it is still noteworthy imo. All this to say that the Zenin rose to power due to the past and have power now due to the fact that they kick down those that may oppose them and the clan techniques that pass down the family as well as their stock of curse tools. Its because of this that Megumi holds the importance that he does, that being that the [Ten Shadows] technique holds great importance.
As I said, obvious, yet its a good primer before we get elbow deep in ts.
I went through the rest of the fanbook as well, I find that there wasn't a lot of things I can talk about here before I reach the speculation portions in the chapters on [Wells Unknown Abyss] and [Totality], however there are some things I found interesting in the rest of the book, I'll go through some of them here, however, as said before, not really necessary for the [Ten Shadows].
This was part of the Q&A section on Megumi and could be quite interesting to use for a fic I think, however we don't know how young he was and how long the visit was, however I would assume he probably wasn't that long after he was first taken in by Gojo due to what Gege was saying here.
[Just so you know, this diagram needs very little editing to fully encompasses JJK's power system (doesn't include things like the 'soul' for example), furthermore the only issues I have with it isn't anything on a technical level but on a narrative level. Like them putting [Cursed Womb Death Paintings] alongside [Cursed Objects] like [Sukuna's Fingers]
While yes they are called [Cursed Objects], they are the full bodies of the [Cursed Womb Death Paintings] and don't really act like other [Cursed Objects].
My example for this? Yuji and Choso's fight in Shibuya. Yuji's punch affects the soul so, should Choso be acting like other [Cursed Objects] he'd be ripped out of his 'vessal'. However that doesn't happen because Choso's body isn't a vessal.
His body is that of a Dead Human (who died as Choso was eaten by him) who was completely taken over by Choso. In other words, Choso isn't 'inside' someone else's body but claimed someone else's as his own.
I might be off base here. And it was a bit of a tangent. The rest is gucci.]
Furthermore, I think there should be a line from [CE Manipulation] to [RCT] and that [RCT] shouldn't be in [Cursed Techniques] (If you check some of the Chapter extra's, Gege explains that despite its name, [RCT] isn't a [CT], damn cat). I think there should be a box from [RCT] to a new one that says [Reverse Cursed Energy] and then from THAT box to [CT Reversal].
Also there should be a link from the [CT] group to the [Barrier Techniques] box to show that [Barriers] are a form of [CT]. There should also be a box in [CT] called [Non-Innate Technique's] which are weaker [CT] that anyone can learn (Think the cuts and fire Gojo does against Hanami's [Shikigami] in the anime, or simple domain and basic shikigami).
Again, not important, this diagram is super useful and should be used more.