Katsura Masaru, a high school freshman who doesn't attend school, meets a god one day in a pure white space. He is informed that his entire class, 1-A, will be summoned to another world as heroes.
"…But I'm a recluse."
It seems that even Masaru, who was at home, got caught up in the transfer to another world. For a shut-in like Masaru, a world of swords and magic is excessively hard mode. The gift he received was called "Home." It granted him the ability to access a mysterious space that resembled his home but wasn't actually his home. However, Masaru realized the usefulness of this "Home", and proceeds to abuse the shit out of it.