The Consequence of Being Summoned Simultaneously from Another World

Shinjou Yuuji.
Is a very common male highschool student.

However, one day, as he was going to school on a train, a magic formation suddenly appeared on the train car he got on.
Moreover, there is a different magic formation on his feet.
As he saw it, expectations danced on his chest as he thought it would turn into a special tale.

As light shined bright. Before long, he slowly opened his eyes—

— then he realized, he was left behind all alone in that train car.

“….. Huh?”