Masaru Kashikaku, a first-year high school student who doesn’t attend school, one day meets a god in a pure white space. There, he’s told that his class, Year 1 Class 1, will be summoned to another world as heroes.

“…But I’m a shut-in?”

Somehow, it seems that even Masaru, who should have been at home, will be caught up in this transportation to another world. A world of swords and magic is far too challenging for Masaru, who’s a shut-in to begin with.

The gift he received was “Home” – the ability to access a mysterious space that resembles his home but isn’t quite his actual home. However, Masaru realizes the usefulness of this “Home”…