Sequel of Mahou Shoujo Lyrical Nanoha Innocent with Subaru and Teana as main characters.

Set in a world parallel to other continuities.<br><br>
Summer 2010: a strange researcher from a suburban city developed a total-immersion virtual reality game that would sweep the world. The game is called "Brave Duel", a motion-sensing simulation card game with team battles. This is a story of a girl whose fate leads her to meet many rivals, compete with them and grow from the experience. Their summer is about to start!

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