Casuality ~ Joshler

In this world there is only two of anything. Good and evil. Black and white. Seriousness and casuality.
Josh Dun is a boy stuck in between his own feelings. It's never been black and white to him. And he's never felt this way about his best friend before.
Tyler Joseph is a boy who made up his mind far too soon. Black. Evil. Serious. He never gave it a second thought, until the day of his wedding. Suddenly the look in his best man's eyes makes him feel guilty and he isn't sure he understands why.
In this world where two boys can moan out each other's names and play on stage together the next morning, is there even a purpose to be searched for?