
He doesn't say much, but don't be fooled into thinking that means he doesn't feel much either. Mathis is a deeply caring soul to those that he has formed a relationship with. Someone like Mathis is the most dependable friend you could expect to have! Plus he puts up the BEST shelves. Your pet hipottu could sleep on them, they're so sturdy!
Mathis doesn't fight out of anger. He's more the kind of guy to break up a fight. The only thing likely to get him to lash out is being confronted with the one thing he spends his life trying to avoid. If you can find out what that is and unlock Mathis as a challenger, be gentle! He doesn't mean to hurt you. But he WILL hurt you.

Hint? Maybe who knows
SPOILER (click to toggle)
Mathis is never late, nor is he early, he arrives precisely when he means to!From the subeta twitter account. Something related to unpunctuality, maybe?