Lunar Crest
This is Arcadia, a plane consisting mainly of draconic and elven life, created by Selune & Mal, and governed by the fae dragons, Silas and Bahamut, and the angelic dragons, Erobern and Evangeline.
After discovering an Underdark-based cult following of the dangerous fallen deity Mal, the guardian dragons take respective post in order to keep their land safe. The Almarith family grows at the center of that cult, with Ivan and Zenra at its helm. Their lust for chaos and destruction allowed them to bring Mal into Arcadia once again and wreak havoc, specifically on the prosperous and generous Aasimar of Goldhelm. This calamity is short-lived due to Evangeline's intervention and sacrifice, ultimately landing Mal and Zenra in Pandemonium, Arcadia's opposite plane. After Venali's birth and subsequent slaying of Ivan following all the destruction, Arcadia begins to restore to its former glory.
Everyone in this folder lives on that land, now, safe and happy, overlooked by its rightful deities as well as its kings, Venali and Xeinos. Until a certain someone threatens to break through the plane's barrier, and another accepts a questionable pact with the Shadow Devil itself.
Pandemonium
After a failed attempt at wiping Arcadia of its entire population and dismantle the prosperous Goldhelm, Mal and Zenra are teleported to the opposite side of the negative planeーPandemonium. A land filled with harsh rushing wind, dark bubbling rivers of tar, and no color.
There, they are essentially trapped, able to communicate with some other planesーbut not much else. While Mal pupeteers the unknowing Feren from afar, Zenra begins to build a warlock army in subservience to Mal (as well as himself), plotting a revenge strike to break open the portal to Arcadia. After discovering Ivan's death, Zenra's resolve reaches a peak, and his desire for revenge becomes all consuming.