...they don't have breasts? I'm willing to buy a youthful fey-looking mammalian race. I'm willing to buy that the horns on the horned Lyn are concave and therefore might actually be ears preventing deafness, I can even stretch my realism about how Descendents of Kirin seem to have every animalistic feature except Giraffe or Unicorn (Since Dragon sort of counts anyway). But I draw the line at flat chests, mammals feed their young breast milk it's a defining feature, unless they lay eggs or are like cats and their tits swell during childbirth/weening stages I don't think this is a viable species