The Things We Hear and See (YT/Highschool AU)

Over the years, students from across the world, who happened to move to San Bruno, California, have been getting sent to Hamilton Middle school, and Karim High school, rather than the local schools. Though they don't notice, the students are creating a community within the school unlike any other. The crazy thing is-they are just like all the other kids their age.
So what makes them so special? How are they different from other kids? They don't seem to care...
Dan Howell is a boy from Berkshire, England who deals with bullying and a smoking addiction.
Marzia Bisognin is a girl from Arzignano, Italy who constantly faces her fears of past accidents.
Mark FischBach is a guy from Cincinnati, Ohio (USA) who is regularly reminded of his parents fighting.
And they aren't the only ones...