"It is a promise ritual that must not be broken," she explained, her hands pulling together into a seal-like triangular formation.
"If all you want is a group you want to have here remain, then it's foolish to risk lives fighting for what is the norm."
"So, instead of a fight, we give you a promise against our Fate."
"Failure to fulfill this promise leads to the diminishing of Fate, a concept so destructive to any being you cannot even begin to imagine," she said.
The system panel blinked right after
[A Divine Oath is the advance of a Contract Grimoire. While it's in a way a deal tool, it is also not a deal, since only one person, the one who makes the promise, is affected.]
"The promise is simple: The group that you want to have here will remain here and be allowed to stay like any Wyvern group that comes in."
"Nothing more, nothing less."