A week went by in the blink of an eye, and Grey, who had only broken through to the Fourth stage of the Elemental Venerable Plane not less than two months was already in the Fifth stage now, and this was with him trying to make sure he didn't break through too fast.
The chaos energy he absorbed on his own, and the one he got from the fruit was enough to shoot his realm to the Sixth and even the Seventh stage with ease, but he didn't want to advance with such speeds anymore, he didn't feel like it was a good idea so he stopped advancing that fast.
Void and the bunny leader on the other hand were in the Late and Mid stages of the Seventh Rank, respectively. Void had gotten to the late stage while the bunny leader was at the Peak of the Mid stages. It would get to the Late stages in a short time.