Ruu

Ruu is a Demonic creature; more importantly, one of the spider clan's subspecies. This rare beast is evil to the brim--and does not keep it a secret. The tail it has is not just for show and can be used as a hand. 

The two different sets of eyes it has keeps most of its evil thoughts hidden. Though, it is often seen mingling with Shine for some bizarre reason and does not seem to hurt him.. so it appears that it likes the sunny attitudes.