A sequel to Allison, Lillia and Treize takes place 17 years after the end of the previous series. Lillia and her childhood friend Treize live in a peaceful world where the Allied Kingdoms of Bezel-Iltoa in the west and the Roxcheanuk Confederation in the east are no longer at war. However, they soon come to realize that peace comes at a very steep cost, and they are about to be drawn into its aftereffects.
As Lillia and Treize is a direct sequel of Allison, knowledge of the previous series is necessary to understand this series.
Alternative names : Lillia to Treize