Sylas listened to her story from start to finish, and the only answer he could come up with was the fact that she likely wasn't just moving through portals between the worlds. She was stepping through time warps as well.
The other potential explanation was the down time she had spent as the so-called "Demon Queen" of so many worlds. It sounded like she had spent a lot of time just waiting around, it was very possible that the time passed very differently from what she wanted. It could have been the system's method of ensuring she was in top condition to act when it was necessary.
But had this been the explanation, the Duchess would have likely been smart enough to see through it. Unless…
'She was moving back and forth between a Demon World she had no recollection of and a Real World she had never lived in before. Without a reference point for either, it would be impossible for her to tell how much time was passing outside of the time she personally experienced.'
