Affixes on steroids

Since I made the original “Riley riddle”, there have been many other riddles of the same form. So, of course, I thought it was very important to take this to its logical extreme. Sorry this one doesn’t rhyme 🙂

My prefix comes through my prefix’s suffix.

My suffix eats my prefix’s suffix’s suffix.

My prefix’s prefix isn’t real.

My prefix’s suffix’s suffix’s prefix is it?

What am I?