|Manga||Witch Craft Works Chapter 7|
|Anime||Witch Craft Works Episode 4|
Rin's Familiar (unnamed) is Rin Kazari's familiar.
Rin's Familiar's appearance is that of a giant fossilized dinosaur with a purple mane, the most notable feature is the heart shaped hole in its right rib
Little is known about this familiar, all is known is that it is loyal to Rin.