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

Once again, Kazumi has been abducted, stolen away from the Pleiades Saints, a group of Magical Girls who were her companions before she lost her memory. Her captor, Yuuri, bears a grudge against the Pleiades Saints and intends to kill Kazumi as payment for the one who was taken from her. Yuuri's magical powers allow her to artificially create witches like the ones Kazumi and her friends encountered earlier - and she intends to use her magic on Kazumi! Why destroy the Pleiades Saints herself when Yuuri can have one of the Saints do it for her?!