Since the time inside the Soul Universe syncs with the time Kent experiences, whenever he is inside the tower, it also adapts to that time.
Thanks to that, when he spent over six years inside the tower with his wives, his three Soul Warriors had also spent that same time cultivating inside the soul universe.
Since the world's limitations didn't apply to them, they saw no restrictions and, knowing they would be embarking on a rather dangerous mission, they gave it their all to train and become better versions of themselves.
Their efforts, of course, paid off, since at the moment they were all very powerful, especially Bello, who was the strongest to begin with.
That said, even Calix had now become a force to be reckoned with.
After cultivating for six years, he moved from Root Immortal to True Immortal. This level-up was so great that everything about him had become overpowered.
