To clarify, the positioning is something along the lines of…

Black King: At the back of the room, facing the entrance.
Flan: In the air, facing the entrance, by the Black King
Newt: Close to the Black King, facing the entrance. Two imps in front of her? Beside her?
Soloist and Lancer: Facing Black King, backs to Entrance.
Rogue Players: Busting down the entrance, facing Black King.
Level 5 Stealth: In the air (same elevation as Flan?), picking a target.
Arms Slave: Outside the Black King’s Castle.