[Axel doesn't respond right away and instead keeps quiet and stares at the puppy as he tilts his head curiously up at him. Of course he knows this dog...but it's just been so long since he's seen him.
After Xion's disappearance, well--Mars was returned to the pet cafe.]
...Yeah. [he says softly as he hesitates to reach out and place his hand on top of Mars' head.] I haven't seen him in a long time.