Miles by J. M. Aring

Miles would consider himself a normal, pretty unassuming guy. He had an amazing job making videos online, and he had great friends he occasionally got to meet up with. Otherwise his life was just… normal. He was just a normal, boring human guy. At least until he and his best friend Shawn come face to muzzle with giant, terrifying monster. They run, Miles shoves Shawn out of the way and… Miles is no longer human.
He’s… sort of okay with it. Suddenly the world’s alive, he has a new friend that varies between mean and a mom-friend, and his best friend smells like a home he never knew. Except, that giant, terrifying monster that introduced them into the supernatural world was still trying to get them.