They didn’t. The character is Holo (I think? that’s what came up from reverse image search and I haven’t seen the show) from Spice and Wolf who Wikipedia describes as:

A beautiful female wolf harvest deity originally from a place in the north known as Yoitsu. Holo escapes from Pasloe and begins traveling with Lawrence. Holo has chosen the form of a 15-year old girl, though she still retains her large white-tipped wolf tail, ears, and two sharp fangs. Her true form is that of a large and fearsome wolf.