For The Children:
When the roleplay starts, the children will be doing one of two things: Escaping Al Necromis's army (though they don't know who Al Necromis is yet) -or going on with their day when they notice Al Necromis approaching for an attack. After the character introductions, that's when the divine weapons will appear before them and they each receive their own vision from their respective God/Goddess. You guys will roleplay your own God.
For instance, the Child of Light will roleplay Eleora. The Child of War roleplays Morrighan, and the Child of Destiny roleplays Agnar.
To generalize the conversation between the Children and their Gods, the Gods are going to introduce themselves and then tell them that they are their children. They will then describe their weapon and what the Children can do with it, and then explain the Children are in danger and that there are two others they must meet. Then we move on to the eclipse and Sacred Mountain conversation. Let me know if you have any questions about this. I'll set things in motion soon so you have an example to go off of.
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For the Necromancers:
The two necromancers can either directly be in battle, searching for the Children or back at their headquarters with Serith. The two necromancers will have the ability to teleport to all the cities through Serith's dark magic orbs. That way encounters are a lot more likely between all characters. They can be leading invasions, planning attacks, creating strategies, or just searching, etc. The necromancers can even try recruiting some of the side roles since some choose darker paths over the others and vice versa. Or maybe the side roles will try to fight them? Totally up to you. ;) Be creative with it! Your character's are your journeymen! Everyone here is on an adventure.
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For the Side Roles:
The side roles can be located wherever they want. They can be in the same city as the Children, be pursuing the Children for whatever reason, want to help the Children, doing their own thing, fighting Al Necromis soldiers, researching recent events, traveling, fishing, eating, drinking, hunting, you name it. Whatever you decide. Everyone will be doing something a little different. Anyone can encounter your character. Your character's purpose in this roleplay is decided by you. Will they be of help? An enemy? Or on their own journey?
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NPCs
I'll be creating a few of my own soon. Feel free to create your own if you see it fit. These NPC's can be roleplayed by anyone, that way if your character is off doing something by his or herself but you want to be able to mingle with the other characters and what they're doing, you can do so by using the NPC. It also gives everyone a chance to sometimes roleplay as direct comrades/enemies to the necromancers or children. Though to keep things neat, in your NPC post just mention at the bottom in a quick OOC how long you're claiming the NPC for or mentioning that you're done using it. For instance:
[ OOC: I'm claiming this NPC for the next 5 posts. Afterwards someone else can use. ]
-or-
"Doo doo dooooooo. Another pretend post~"
[ OOC: I'm done using this NPC now. ]