So if ninetail like grim exist then i guess we're doomed! This is what happen you get bit by a bonetails, which is what i call it, you turn into a grim like human. so if you want to know how to prevent this don't atempt to kill it or harass it it won't attack unless two things it knows you have food and its provoked. On rare occasions it will want a friend and sence most bonetails are rare since they don't have a good place to call home they just go to humans and atempt to make friends with one. Bonetails are very loyal to their human friend even when they are sick they would stay by your side. how ever Brianna was turned cause the bonetails needed help with saving a friend from certain doom! So Brianna, accepted like a dumby, and got turned the bonetails and her freed her friend and she live her days as a bonetails in japan but she can turn to a normal kitsune with a ring called the grim ring