It is the year 3287, and the countries of Roxche and Soux-Beil have been feuding for one hundred and thirty years. In the country of Roxche, the young air force pilot Allison has just reunited with her childhood friend Wil; and together, they are about to embark on a grand adventure. Whether it's ending the war between the countries with the help of a legendary treasure, traveling into hostile territory, or helping restore a princess's right to the throne, Allison and Wil will complete their missions with kindness and honor.
The war between the monarchical Galactic Empire and the democratic Free Planets Alliance has raged ceaselessly across the galaxy for over a century, with the fleets of both powers having fought countless battles. Currently the conflict revolves around the strategic Iserlohn Corridor, one of only two passages of space through which the two forces can access each other. Here the Empire has built the nigh-impregnable Iserlohn Fortress, whose deadly weaponry has thwarted repeated efforts by the Alliance to capture her. Phezzan, a neutral mercantile state, controls the other corridor. The long war has resulted in an indecisive stalemate, but there are two men from the two worlds who will change everything: Wen-Li Yang, a gifted strategist from the Alliance who wants nothing more than to retire and be a historian; and Reinhard von Lohengramm, a man from the Empire whose ambition knows no bounds. Their loves, struggles, triumphs and failures play across an interstellar stage of intrigue, war and death.
Fourteen-year-old Jean was just an ordinary would-be inventor, until the mysterious Nadia crashed into his life. With no family, a pet lion and a jewel known as the Blue Water, Nadia is constantly on the run from those who want to steal her most valuable gem. Now, with a trio of thieves and the nefarious organization known as Gargoyle on their trail, Jean and Nadia must struggle to learn the secret of the Blue Water and protect its powers from those who would use them to destroy the world!
Nadia is admittedly much more aimed at children than Allison and Lillia, but if you are in the mood for a grand adventure involving enemy forces and artifacts, both of these titles will suffice. In addition, each involves old time airplanes and other elements that will definitely remind you of the other.