Stingrays

Stingrays (アカエイ, Akaei) are creatures that exist in the Kaijōkōdō (海上光洞, Marine-Light Cavern) along with Mantarays. They can be called via when they have a contract to a person on the other side. But A summoner can only have a contract to one of the species at a time.

Notable Summoners

 * Contract:: Tadashimura - Stingrays