Alya, on the other hand, has heard Adrien's voice more recently - albeit his voice from two years ago, by his standards. It's changed just enough that she needs a moment or two to place it before she recognizes it, which gives him all the time he needs to catch her in a hug.

"Adrien?" She sounds a little disbelieving, but not unhappy to see him. Her gaze tracks up to his face and she realizes just how much higher she has to look to meet his eyes. "Dude! You had a growth spurt!"