Crow Caste

The Crow Caste are in charge of disposing of any "sinners" that are infected by the plague. Rejected and seen as sinners, they are immune to the plague that they trie to destroy. They constantly travel on the road, seeking signalisation fire created by village to warn them of the presence of a plague victime. Their job is to mercifully kill the sickly, and burn their body with a special substance.

According to the common belief, Crows where sinners in their previous life, and they repay their debt to the alliance by trying to get rid of the plague. It's also a common belief to think that only sinners gets infected, and so the plague victime are often seen as crows in their future life, as when a crow kill a sickly, they greet the dead "on their road" and refer them as "cousin".

Crows constantly travel in group, led only by a sorcerer. Only the chief is allowed to have a weapon, albeit a broken one.

They are the cast with the fewest sorcerer. A crow sorcerer has the ability, by using a tooth from a dead sorcerer from another cast, to temporarily burrow their power, as well as partially reading the memory that the teeth hold within it. Apparently, they can sense the "magic spark" that is within a tooth, and is akin to heat in terms of sensation, or sometime compared to a whisper. the teeth are partially "aware", as their usage can most of time trigger memory of their former owner, wich can then influence the crow using them. For that same reason, it is hard to force two teeth to work at the same time, and a balance must be instaured. How long a crow sorcerer can use a borrowed power depend on their skills. A self-quote from Fie hint that bone too posses a sort of power for them. It's later shown that memories can be recovered from bones.

They gain no power from another crow sorcerer tooth, but they can check if the possessor of the tooth is alive by checking if the teeth emit a "heat".