Rui hadn't expected that Kane would reach the Sage Realm before he did in the three months that he was unconscious.
He had already assumed that he would have to break Kane through like he did when he was a Squire. Though he had only partially contributed to his ascent to the Master Realm. This time, however, not only did Kane reach it by himself, he only reached it 'before' Rui did.
He did have the manifold, so Rui wasn't actually sure if it would end up being sooner or later.
"I can't wait to meet him when all this is over."
This was even more motivation to finish this voyage across human civilization.
If he was being completely honest, he was starting to get tired of it. These powerhouses were just too goddamn annoying. Not to mention, he had been doing this for more than three years now, and he genuinely would have liked to have seen this through to the end sooner than later.