Akito was 16 when he would suddenly get ran down by a truck. The blow killed him, and left everyone he knew feeling hopeless and destroyed.

Akito was literally next in line for the pearly gates, but when it was his turn, the angel signing people off would raise an eyebrow.

You see, Akito isn't supposed to be dead yet. Someway, somehow, Akito died instead of someone else. Now Akito has to figure out how to get back home. Alive.