Allison to Lillia

Set in a continent divided into two commonwealths that have been engaged in war for hundreds of years, Allison and Will go on a mission to search "the treasure that will put an end to the war". Their hope is inherited to their daughter Lillia, who strives to thaw the torn nations into a united country. This anime encourages young generations to believe in a world without hatred or war regardless of nationalities and beliefs. (Source: Anime Network)The first half of the story centers around Allison Whittington, a young blonde pilot in the Roxche Air Force who has experience with biplanes. She comes to visit her good friend Wil Schultz  during his summer vacation at Rowe Sneyum Senior School's dormitory after being away for six months. The two get involved in three different adventures over a period of a year where they meet new people and form important bonds.