Zack was never the playful type. 
Ever since he was younger, he’d always prioritized his school work over anything. This wasn’t because his parents were strict with him or anything like that; he’d simply gotten into the habit of doing so. That doesn’t mean that he hasn’t got any friends, as throughout his life, he’s met a lot of wonderful people.
One of which was Adam, who he met as a highschool freshie. In terms of personality, Zack has often thought tha