Rebecca (REBECCA) is a witch that appears as a boss in Puella Magi Madoka Magica Side Story: Magia Record.
The witch of sheep. Her nature is insomnia. A witch who spends all her days trembling within the fence in her barrier, unsure of what she ought to do. Her extreme caution of her surroundings has caused her to sprout extra eyes. It’s said that at least one of these eyes is always open, day or night, and that she never sleeps. This witch has never once stepped outside of her fence, and has no intention of ever doing so. She lives within the fence, happily tamed by her minions, and waits for said minions to bring her humans to eat. Since she’s usually trembling in fear of something, she may give off a well-behaved impression, but she’ll panic and run wild if her minions are defeated.
Minions of the witch of sheep. Their role is to be shepherds. These minions slowly stroll around the inside of the barrier. They serve as the witch’s owners, and think of her as their valuable property. Aside from watching over the witch, they generally locate humans lost in the barrier, who they then hunt as a group by blowing signals to their far-off brethren with the horns hanging from their necks. That being said, there are far more minions than are actually needed to shepherd one well-behaved witch, so they have very little to do when there aren’t any humans around. In fact, they spend more time talking to each other about the quality of this year’s cheese than they do working as shepherds.