From Loveless:
The protectors of a certain fox deity shrine happen to be Unka, an overly-serious red fox with a low social status, and Aura, a delinquent, pure-bred white fox.
Can Unka, who is unable to express himself honestly, and Aura, who always goes all-out to get what he wants, really fall in love!?
For another adult animal-eared series, check out the postscript at the end...