Here is my idea for the cute pet. let me know if you are unhappy with the backstory, and I can tweak it to fit.

[hider=Judge Cinnamon]
[color=f49ac2][b][u]Name:[/u][/b][/color] Judge Cinnamon
[color=f49ac2][b][u]Appearance:[/u][/b][/color]
[indent][hider=What you see is what you get][img]http://i.imgur.com/sFjK0GI.gif[/img]

[img]https://78.media.tumblr.com/8efb08f487008bd53cfc9d7500a7a876/tumblr_mr9xlchN0a1r0o48lo1_500.gif[/img][/hider]
[/indent]
[color=f49ac2][b][u]Powers:[/u][/b][/color][list]
[*][b][u]Detect Evil:[/u][/b][indent]Cinnamon can detect the presence of magically evil events that occur within the city under his jurisdiction[/indent]
[*][b][u]Telepathy:[/u][/b][indent]Cinnamon can communicate telepathically with magical girls that are under his jurisdiction[/indent]
[*][b][u]Recruit Magical Girl:[/u][/b][indent]Cinnamon can grant magical girl powers to girls within his city of jurisdiction if they prove themselves worthy to him[/indent]
[/list]
[color=f49ac2][b][u]History with Justice Heart:[/u][/b][/color][indent]Cinnamon had been trained in the art of being a cute magical pet and was dispatched to the city of San Francisco to keep the magical order. He had his eye on a few girls who he felt were worthy and when terror struck, he recruited them, showing them how to use and develop their powers and how to combat the magical menace that plagued their city.
 Over time, the team grew, and Cinnamon couldn't be more proud, and finally, victory came...[/indent]
[color=f49ac2][b][u]History after Justice Heart:[/u][/b][/color][indent]...so why was he still in San Francisco? 20 years later and no new magical threat has shown up. His girls were past retirement age yet he still had not been reassigned. His messages back to Magical Pet HQ always prompt the reply, "Please wait for additional orders". Staying in the mortal world has slowly taken its toll on Cinnamon. While he still tries to maintain his cheerful, chipper attitude, to the point of being obnoxious, he occasionally falls into outbursts of frustration, anger and swearing. Staying with Eileen, the only girl who still wants to be a magical girl, has also had negative effects as well. For one, he's been getting into online porn through Eileen's computer when she's away, and has slowly come to the realization that he might be a lolicon.[/indent]
[color=f49ac2][b][u]Relationships:[/u][/b][/color][list]
[*][b][u]Justice Heart Members:[/u][/b][indent]Cinnamon ives with Eileen and is starting to pick up some of her less savory habits when it comes to media consumption. He is in fairly regular contact with Fiona and Alice through Eileen, though he tries to stay hidden from Fiona's family, or pretend he's a plushie.[/indent][/list][/hider]