Fallen Sun

The Fallen Sun are a nefarious group of elite and highly powerful fighters, thieves, and arcanists, acting as a "remnant" group of the Shard of the Sun to spread their domain, and not exactly their dogma. The group was created by Sinseid after the Great Turnback remade the Ancient War, becoming the Second Ancient War. Their theaters of operation are on various arenas within The World's Edge and Drychwal, specifically out of Starshatter Forest, an island on Krom's Belt. Their main "base" is located near Singarde, also on the Belt.
The organization is known for their chaotic methods of obtaining "peace" which they believe to be through the Godgigum Chalice. They believe in the world needing "a rebalancing" but for what aims or ends is unknown, besides disrupting the balance in place by Oraclos the Worldholder. The Starshatter Fallen, a sub-group, and the Legion of the Scarred, Sinseid's "ally" group work to aid them in achieving their aims.
After the events in Perdiditum City with the unknown Peacekeepers, Sinseid ultimately met his death at the hands of the Archtitan. With the Turnback occurring, Sinseid took it upon his power to create the Fallen Sun, believing his power to be able to control the world a task worthy of his attention. He created it after his "betrayal" in the past where he stole the Glyph of Xan Blood for Hawthorne de Diaum, Salmoneo Eus, and Varo Bartholomew, in which he believed they knew he would die doing so. While he refrains from assisting them directly, he is still in allegiance with the Shard's unnamed leader.