Krune's group and Liriu were not the only ones improving at the moment.
Dilo had finally broken through and entered the Void Breaking Realm. Although he can't compare to Krune and Feifei, who are in the 6th Stage already, he is doing pretty well by himself. He is now in the 1st Stage of the Void Breaking Realm.
Xankruan wasn't so far yet but still made her way to the 8th Stage of the Soul Forging Realm. Like Dilo and Liriu, she stayed behind in the earlier floors to prevent herself from bumping into someone too strong. However, Liriu is on the 5th Floor, while she and Dilo are on the 6th.