1Book I: The Trone of Ice
It's been six years since the World of Twelve was saved from Qilby. But now Ogrest is crying again, and his tears are flooding the Sadida kingdom.
2Book II : Ush
Yugo and his pals are held captive in Count Harebourg's icy prison, where they discover three prisoners trapped in blocks of ice.
3Book III : Dragon Mountain
When Percedal decides to directly attack the terrifying Ogrest, the destiny of the World of Twelve is again in the hands of Yugo and his team.