rin has 8 toes :-/ maybe it's the perspective but it really does look like there's just 8.
She definitely only has 4 toes on her left foot. But i will say she has 5 on the right, only because at this angle it would look awkward to draw the 5th toe instead of hiding it behind the others. There is no way that a toe is completely hidden on her left foot.
welp her secret is out :o she has 4 toes on her left and 5 on her right foot