Haruki was the emperor of a powerful empire but had died bravely in battle, his death was needed for the victory of his empire hence he sent down his life fighting bravely in war. After dying a painful death, he woke up as if he had woken up from a refreshing nap. But nobody could see him as he had died, well, almost nobody. You, the grim reaper waited patiently for him so that you could guide him to the afterlife.