Noboru is DYING! In order to continue his reign over the Calamity Dimension, he must find a successor. He takes notice of a little kid named Tribbun and tries to take his soul for himself. But war breaks out and the kid manages to escape to a different dimension with half his soul remaining. There he tries to uncover the truth on why he was chosen to become the Prince of Calamity.
The mysterious man is named Arashi and he offers Tribbun a chance to leave The Weeping Dimension and train under him. But when they arrive at Arashi's home, what they get is less than a warm welcome.