It turned out that the Beauty and the Beast wanted the Queen dead! That was the reason it wanted to cooperate with the humans.
"What?" Even Ninth was confused.
"We know that you have encountered the Dragon one or two times already on this mission. As you might have guessed, that Dragon is not supposed to be here. It is a very dangerous Canzer that has no boundaries, no code, and no rules. It will kill both humans and Canzers indiscriminately.
We simply want to teach it its place. By helping us kill the Dragon, you will have the entire Canzer race in debt to your group.
Every Canzer will be so grateful for your help that they will no longer block your way towards the Church. They will let you dispatch the Ifrit in your God's heart and we can all go home."
Ninth went silent. Even though she wanted to refuse Beauty's words as soon as she said it, she knew that this was an opportunity that wouldn't come again.