Dentsū.

There is a train station on the other side of death, yet not all who arrive on the platform will be judged ready for passage onwards. For one unready soul, there will be both a test and a second chance. Rather than be reborn, this soul will awake in the body of 14-year-old suicide, Makoto Kobayashi, where it must not only find a way to fit into Makoto's existence, but also unravel two mysteries. What is the secret of the great sin it committed in...