Witch Craft Works: Takamiya-kun to Imouto no Warudakumi

Witchcraft Works, Witch Craft Works OVA, Witch Craft Works: Takamiya-kun and His Sister's Conspiracy, ウィッチクラフトワークス「多華宮君と妹の悪巧み」

DVD OVA of Witch Craft Works bundled with the eighth manga volume.