Canines and Felines are demons born under the two families, carrying the wild like traits from whatever spirit they form whether it is from a canine, or feline. Some of these demons actually carry physical appearance of their spirit, like horns or long ears and tails. 

The two families have decided that to end the war in the underworld they would need to experiment whether they would only cause more mass murder once united or can come together in peace, so they’ve sent their young adult offspring to a “Academy.” Where they will be forced to live with one another, and the mentors will watch closely to see whether the war between the two families is instinct or a choice. But understand that each of these cultures are raised to hate the other kind, which also may cause conflict.

Creating a character: 
Canine Demons carry dog-like qualities, and Feline Demons carry cat-like qualities.  Simple as that. 
You don’t have to have a tail and ears, wings and horns are allowed as well.
Anime photos would work best for this RP but you can use whatever you want.