Need Help Finding An Anime

[KingGreed]

I need help, if possible, the description is very vague as I don't remember much of the anime except for just a scene and a quote.

The hero is with his group inside a house when the enemies appear out of nowhere and start to attack the main character group and the lady (the one with nine tail fox power I think). I can't remember much from that except for this one quote that I can't remember well enough but it something similar to this "I wait for her power to get ripe before I devour it." The one who say that was the villain and it a female that say it.