Mahou Shoujo Lyrical Nanoha ViVid

Vivio Takamachi now enjoys a peaceful life with Nanoha and Fate while training in martial arts under Nove Nakajima. That routine is interrupted by Einhard Stratos, a middle-school fighter who has inherited the memories and combat style of Claus Ingvalt, once a ruler of ancient Belka. Convinced that strength is the only way to answer the regrets passed down to her, Einhard seeks opponents connected to Belka's royal past.

Nove brings Einhard and Vivio together, and an awkward first meeting gradually grows into friendship and serious training. As Vivio develops her own style with the device Chris and Einhard searches for a purpose beyond inherited memories, their bond leads them toward competitive martial arts where young fighters can test their beliefs without repeating the wars of their ancestors.