Kitsune to Usagi no Moe Yuru Koi

Tsumugi, a member of the "Rabbit Tribe," meets Kanae, a member of the "Fox Tribe," their enemy. The Fox Tribe eats the Rabbit Tribe, so they should be enemies, but before they know it, love has blossomed between the two of them...!? A forbidden love story between different species that must be kept a secret from everyone.

(Source: Ciao Plus, translated)