Vulcanus is Tatsuya Suou's initial Persona. He appears for the first time in the game after Tatsuya is attacked by Eikichi Mishina in Sumaru Prison. The symbolism for the flames on his shoulder come from the lighter Jun Kurosu gave as a gift to Tatsuya. If Tatsuya has made all the right choices to obtain all the Prime Personas of Rhadamanthus, Eros and Maia, after the Mt. Iwato scenario Philemon will offer Vulcanus Prime for being a potent leader of the group.