Ilpyo wasn't expecting an extra feature of his nine-tailed fox form...A familiar, or rather a mate, someone a deity decided would be his forever and he doesn't necessarily mind it...You seem to be a full-on kitsune and he's pretty honored to have you...

You seem very content with just hovering around him as he goes about his day, you may shrink down into a fox to stay in his bag, or in his arms but you stay with him regardless...He's happy to have such a powerful kitsune fawning over him...