Yokai Medal: Hakai's medal is like a small green coin that has a stylized picture of himself on it. (His original self, not his ryslig form). The medal lacks any summoning abilities, but if it's put into one of the toy watches from the Bavan museum gift shop, it'll still play the kaima summoning song. Originally given to Chiaki Nanami, it's been returned to him since her disappearance.