Mugen no Sakura ~Hitsuya-hime Injoku Youshokutan~

The Infinite Sky. The Infinite Earth. A continent that embraced all the world. At its heart lay the Elven Kingdom of Maradian—a land of abundance and blessings, a place overflowing with dreams, compassion, love, and joy. Yet, with the actions of a single traitor, Maradian was brought to ruin in a single night. Barely escaping with her life, the second princess of Maradian, Artesia, encountered a lone girl in the human realm. Her name was Harukaze Sakura. Was it fate, inescapable and binding? Artesia entrusted her soul to Sakura, and together they found themselves fighting against the pursuers from Maradian. The pure-hearted girl’s soul resonated with Artesia, and clad in armor born of their bond, she stood against the monstrous foes that pursued them. (From the official website synopsis)