alastor_(shakugan_no_shana)
Alastor, "Flame of Heaven", is a Crimson God from the Shakugan no Shana media franchise. He acts as a guardian for his contractor, Shana.
Under Shana's contract, Alastor typically appears as a glowing, black and red pendant around her neck, the Cocytus. His true form is a winged minotaur.