Board Thread:Theories and Speculation/@comment-26119997-20150219181955/@comment-25937220-20150220005033

Kaguya did eat the forbidden fruit, which naturally came from the Shinju tree. Kaguya likes blood and power, so she's definitely scoring a perfect 100 on the similarities chart with the tree. I also have my own theories (they're really ridiculous) and maybe there is a slight possibility that the tree brainwashed Kaguya for being the person she is now.

I don't know. This topic is a bit complicated for me to give a good conclusion. Maybe Kishimoto wanted to leave this idea to a mystery. That guy loves suspense more than Edgar Allan Poe himself.