Xam'd: Lost Memories is a oNA (web) anime that premiered in summer 2008, produced by bones.

About the production: the story comes from an original script, there are 26 episodes of about 24 minutes and its current status is "finished".

Its main genres are action and sci-fi, with themes such as Ensemble Cast, Military, War and Super Power.

On AniList, Xam'd: Lost Memories has an average score of 73%, a good score, and appears on 32,271 users' lists.

Sentan Island is a small island surrounded by the Yuden Sea. It exists in a state of dreamlike tranquility, cut off from the war between the Northern Government and the Southern Continent Free Zone. Our hero, Akiyuki Takehara, lives on Sentan Island along with his mother Fusa. He is currently separated from his father, the town doctor Ryuzo, but the bond between father and son remains. One day, after taking Ryuzo the lunch that Fusa has made for him as usual, Akiyuki arrives at school, where he is caught up in an explosion along with his friends, Haru and Furuichi. The explosion produces a mysterious light, which enters Akiyuki's arm, causing him excruciating pain. He's given no time to understand it, however, as the white-haired girl who rode on the bus with him guides him to a power unlike anything he's ever known.

Official synopsis from AniList.