Episode 1

Lost Ones from Another World (異世界からの「迷い人」) is the 1st episode of the anime adaptation.

Summary
Ordinary high school students, Taichi Nishimura and Rin Azuma were on their way to school until they were suddenly caught inside a mysterious magic circle. The next moment they woke up, the pair found themselves on a grassfield of an unknown land. They walked around while wondering where they are until they get cornered by a ferocious horned-horse...