One time a few months ago, a foreign spirit contractor came over to the Adventurers' Guild to have a discussion with the Guild Master, at the same time that the Anomalies' Spirit Half were turning in one of their quests.
The instant said Spirit Contractor saw Kayla, the expression that appeared on their face was one of shock mixed with traces of fear.
As for their contracted spirits, they all manifested their physical bodies, revealing their peak Grandmaster level existence levels that were one foot away from reaching the Epic level.
What they did next, was to get down on one knee and bow in front of Kayla, surprising both the Spirit contractor and the grandmaster Knights guarding them.
This allowed everyone to infer that Kayla's rank among the spirits was high enough that even more powerful spirits had to respect her.