|Ar tonelico Qoga: Knell of Ar Ciel Enemy|
|Light RT B|
|下級RT_B (Low-Class RT B) (kakyuu RT_B)|
|Location||Moebius Factory (only in the boss battle against Mute)|
Clustania Slave District (only in the boss battle against Mute)
|Grade 4 Drop||Optic Shield|
|Grade 3 Drop||Rainbow Coat|
|Grade 2 Drop||Big Ribbon|
|Grade 1 Drop||B-Good β|
The second in the Light RT subtype of Reyvateil enemies, these foes are much stronger than their predecessors, the Light RT As, although since they are only featured in two of the boss battles against Mute, you won' have much of a chance to see them in action, and most likely will be outclassed by the normal encounters you will have at these points in the game. Therefore, just get rid of them so you can concentrate better in the boss.
Due to appearing only during boss battles, it's impossible to get them to drop items, Leaf and experience.