Isn't it odd that the Rinne Sharingan is one eye? I believe Kaguya took that eye from someone powerful after eating the fruit of the Shinju. Why do I think so?
Tobi has one eye hole, which I believe was where the Rinne Sharingan once was, until he was transformed into a Zetsu.
If she stole it how would anyone else get it when trying to become her? It's like saying if I stole a shari and implanted it my children would have a chance to awaken it.
If she stole it how would anyone else get it when trying to become her? It's like saying if I stole a shari and implanted it my children would have a chance to awaken it.
Besides, if the Zetsu was the original owner, then he would be stronger than her. The Rinne Sharingan is only one eye because it's an extremely powerful Kekkei Moura that grants global/dimension scale abilities.
Besides, if the Zetsu was the original owner, then he would be stronger than her. The Rinne Sharingan is only one eye because it's an extremely powerful Kekkei Moura that grants global/dimension scale abilities.
The Rinne Sharingan is only one eye because it embodies the concept of the third 'inner eye' that allows perception and comprehension beyond the physical and into the metaphysical (or something to that effect; please don't quote me). There's no second eye to go with it, because it's not just an eye. It's the third eye.
Who would Kaguya have take the Rinne Sharingan from, anyway? No one else would have had chakra (or dojutsu, by extension), because she was the sole wielder prior to her sons inheriting it from her. It's more than likely she just developed it once she ate the Shinju.
Kaguya who is referenced in the Uzumaki Shrine (Three Eyes, The Curtain as her hair, The masks are the souls caught in Mugen Tsukuyomi) had Three Spiral eyes :-
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These Spiral Eyes are actually the Rinnesharingan (The base design of the Rinnesharingan is a Spiral). Kaguya was only shown with one (Her Third eye). This Rinnesharingan went from Spiral Zetsu (He himself is a Spiral + Databook hints he is an extension of Shinju/Kaguya just like Black Zetsu [This in turn means you are correct and the plot supports the idea]) -> Gedo Mazou -> Juubi revived in Fourth Shinobi World War -> Shinju -> Madara (His Third Eye) -> Kaguya -> Finally gets sealed away by Chibaku Tensei.
This means the other two Spirals are still out there somewhere.
The theory of mine though based on RT's to solve the mystery of the other two Spirals is that Sasuke has the second Rinnesharingan (His Left eye) and the third Rinnesharingan is sealed in NV's Moon. (This is just a theory for fluff).
The Theory on the Tripal Spirals by RT :
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The base idea is actually inspired by the Triple Spiral :
