In the Kingdom of White, Iris reflects on her duties and the events that led her to become queen. Meanwhile, in the Kingdom of Black, the Prince of Darkness enters a competition to make his position as heir to the throne official.

After his return to the Kingdom of Black, the Prince of Darkness is barred from the palace and ordered to hunt dangerous monsters on the frontier. Meanwhile, Phious worries about Iris's condition as the Kingdom of White prepares for war.