Puella Magi Kazumi Magica, Vol. 2: The Innocent Malice — Masaki Hiramatsu

Kazumi is determined to continue to battle witches alongside the Pleiades Saints, a group of Magical Girls who were Kazumis companions prior to losing her memory. But it turns out that the witches aren't her only enemy... Yuuri, a Magical Girl, has turned against her own kind and targeted the Pleiades Saints for destroying what was precious to her. What better way for Yuuri to exact her revenge than to destroy what the Saints hold dear?! Abducted by Yuuri, Kazumi knows she has to help the Pleiades Saints...but does she have what it takes to fight one of her sisters-in-arms?!