魔法少女かずみ☆マギカ ~The innocent malice~
Comic series written by Hiramatsu Masaki and illustrated by Tensugi Takashi, serialized in Manga Time Kirara Forward.
The authors professed that it's a spin-off of Mahou Shoujo Madoka Magica.
This tag implicates mahou_shoujo_madoka_magica (learn more).