Talk:Itsuki Kawasumi/@comment-7862945-20190409220849/@comment-33122991-20190410002015

Yes the three other heroes (not including Naofumi) played games in their previous world similar to the world they were summoned to.

They use to this knowledge to try and one-up each other.

Though it does start off with a few differences but overtime the more they explore the more differences they find.