He's the Corpse collector. He collects torches that are about to fade away and stores them to restore an old painting.
His desire is to collect as many torches as he can to grant his one wish that is a secret but he does not interfere with the balance by doing so since he only goes after torches that are about to fade away. He can use some of his power to create diversions by making "torch birds" with his power stored up over the years and he can also move quickly to get away from enemies and he has no offensive ability at all. He arrives to Misaki escaping from Margery Daw, and after talking with Yuji inside the city´s museum it is clear for everyone that he wasn´t a threat. Anyway, at that time, Margery Daw had jut arrived the city too and hadn´t meet Shana and Yuji, so she still believed that all Crimsom Denizens deserved to be banished from this world. Yuji and Shana decide to protect Rammie from Margery. After a very difficult fight they are able to defeat her making her understand in the process that as a flame haze her duty was to protect the world´s balance, not to go around killing innocent Denizens for the mere fact that they were what they were, even if most of them where actually evil. Rammie thanks them for their help and leaves the city to continue his journey. It is stated that him and Alastor where old friends, and that Rammie was in fact a powerful female Crimsom Denizen named Leanan-Sidhe that created many Unrestraint Powers in the past. Leanan-Sidhe wear Rammie and Corpse Retriever name when she's collecting the Power of Existence, in order to restore an old painting that was broken. The painting was painted by a human painter that Leanan-Sidhe fell in love.