The assembly area takes the form of a glass-domed amphitheater with raised bleachers arranged in a circle around a circular stage that has a tall, ornate backdrop with blue lights. There is also a large, open area in front of the stage where students can stand.

As well as being used for meetings of the student body, the assembly area can be used for dueling practice, with the raised stage serving as the fighting area. The lighting in this area can be carefully controlled, making it impossible to see the rest of the area, thus giving duelists the illusion of being entirely on their own.

This also appears to be the location from which missions are assigned to students. The missions are displayed three at a time on numerous screens, listing the type of mission, location, and mission start time, among other extra details. Teams assign themselves to missions by selecting one and then entering their team name.