It's nice to see these two reunited after all these years. This might contain some spoilers for the upcoming season so feel free to skip the reading this was just the stuff I read online. Eight years prior to the main story Shano and Airi came from the unit LynxEyes and Scarlet Canary. They were incredibly popular; however, creative differences arose among them which resulted in the unit's disbandment. Sometime later, fate would bring Shano and Airi together once more when they performed together at D4 FES.