Hey, I haven't heard your thoughts about the the apple symbolism with characters associated with it. Let me see: eto, furuta, touka?
It all comes back to the apple from the Tree of Knowledge of Good and Evil.
Eto is the serpent who offers knowledge that brings suffering. This is seen principally with Kanae and Haise, who are severely tormented by the epiphanies Eto leads them to, but it also includes the Japanese (and even world) populace after her press conference and ‘Bileygr the King’. Their suffering in the conflict that erupts from the truth has already begun in the Clown Siege. Adam and Eve are seduced by the serpent, take the fruit, and them and all their kind suffer eternally because of it.
Furuta (*cough* FRUIT *cough*) is like if Adam had not only eaten the apple, but then used his newfound knowledge to topple God and take Eden for himself. He comes from the Sunlit Garden (of Eden), he knows how the system truly works, and now he’s using it for his own advantage. But although he hides it behind the mask of a clown, he’s suffering too, and he has a lot more to suffer before the series is through.
In her birthday art back in 2015, Touka was guarding the apple of knowledge for Haise. She had the power to unlock his memories, but chose not to, because (just like Haise’s memories), the apple does not only enlighten but brings immense torment to follow. Yet despite being aware of its dangers, Touka is still fond of the apple as deep down she does want Haise’s memories to return.
But in the end, having no reservations when it comes to causing pain, Eto is the one to indirectly grant the apple to Haise.
Thanks for the question, anon! One of these days I’ll write up a Biblical Reading of TG, where I’ll expand on a lot of the ideas I’ve talked about here.