Another World Story

This story is about an average high school boy with an average lifestyle who likes to read novels especially fantasy ones and was transferred to another world along with his classmates from his school. As they were transferred our protagonist, John Kaiser, was the sole student among his classmates who were left behind, leaving him all alone in their classroom. As he was wondering what happened to the others, he remembered one of the novels he had read. It was a story of a fantasy world, where a king of a human kingdom summons heroes from another world to save their world from the demon king, a typical Isekai (Another World) fantasy novel. Our protagonist, John Kaiser, started to contemplate and question 'why?' why was he the only one not summoned? And as his questions go crazy, a light emerges from the place where he was sitting. Is this the start of our protagonist's fantasy adventure as a hero? Or will he live the same life again as an average person even in another world?