Board Thread:Theories and Speculation/@comment-1512913-20190615111653

People over the internet are coming up with some crazy ass theories due to the latest chapter hinting at some link and the two seals looking alike.

The thing is, I have my own theory/explanation, that is the most reasonable. Short version: the former is modeled after the latter, in similar vein to Tailed Beast Ball and Rasengan.

Did Mito also have the seal? Possibly.... if so, was Tsunade/Mito even the first one ever with the seal? Who is to say that it hadn't been created prior to Tsunade (hypothetically Mito) ? Might be an ancient Uzumaki seal for all we know.

Now, for this to be true, whoever made Yin Seal must have observed Karma... how that is possible is beyond anyone's guess, but perhaps Jigen is older than apparent.

Now, in the latest chapter, we see Jigen turn into an Otsutsuki-like form briefly, while absorbing a Jubi's chakra, but quickly reverting back once he is done. Why? Simple.... Yin Seal and Karma work in exactly the same way at the basic level, both are an extra separate chakra storage on the user's body. So the reason why Jigen reverted back right away is because the Jubi's chakra was moved into Karma for later use, instead of remaining in his chakra circulatory system.

And that's pretty much the connections, one inspired the other and both work as separate chakra storage. From there on, they are completely different, with Yin Seal being Ninjutsu, Karma being something you get after killing an Otsutsuki, not to mention it having extra powers like absorption and release and possibly also working in similar manner to Orochimaru's own seals, for the purpose of the Otsutsuki which granted it own's revival. 