[While it's late at night, it's not uncommon for Akito to wander a little. His other will ride well into the night, and with having upgraded his AT recently, the light is watching him while walking around the dome. It's been awhile since he was at the edge itself.
When he sees Tieria, Akito smiles a little, but then notices he seems...different. Not upset, but...sad? So the light worries, walking over to where the other is] Tieria-san?