Aotatsu is a race of Dragon Demi-Humans, which are called Dragonewts. The kanji for Aotatsu can be read Blue Dragon.
Many of those from the Aotatsu race believe in the Dragon Faith as opposed to Silt Welt's major religion of the Shield Faith. The race can be loosely associated with the Seiryu, the Azure Dragon of the East. The Aotatsu currently hold one of the most authoritative positions in Silt Welt along with the Genmu and Shusaku. Before the war with Melromarc, the Aotatsu, Genmu, and Shusaku were in competition with the Hakuko for control over Silt Welt but the three gained influence after the Hakuko was greatly ravaged by the war. Silt Welt's higher-ups have begun to notice them secretly taking action against the worship of the summoned Heroes. Many of the Aotatsu tribe have migrated to Shield Freiden, and recently, their leader has been working within Faubley.