When I created the Nyxad or Night Nymph, I reskinned the Half-Drow but gave them the option of choosing to have the drow darkvision/light sensitivity package instead of the elven darkvision package, chosen at char gen. You could arguably reskin a similar race for a Nekomata or Kitsune, though I'd imagine half-elf is a flexible starting point for either. I swear, for most kemonomimi and most cutesy seelie or unseelie fey, I recommend reskinning the half-elf of some flavor and representing your youkai type through your racial skill choices, class and background choices, and feat choice. Though I swear Half-Elves are the new "reskin this race for a cutesy anime girl" race based on what I have seen, and it saves a lot of time spent homebrewing.