Changing The New WORLD

One day Shiroyama finds himself in a completely unknown place all alone. It seems like he has been transported to another world. For the time being he seems very happy to escape from his boring world and live in a new world but will his attitude remain the same. What will he do in this new world which is filled with mystery? Will he try to unfold the dark truth of this new world and change it or live normally?? You have to find out.