Demon Knives: A Poppy Playtime Fanfic

Mary Goodfellow was a young, teenage girl who was stuck in foster care system most of her life. It seemed things weren't getting any better for her with her being expelled from high school. Things seem to be really turning around for her, when a couple that work for Poppy Playtime decide to adopt her. Or, is it? When she becomes a wolf-doll hybrid after being killed, she becomes heart broken, realizing her dreams are forever shattered.

She vows to get revenge but isn't sure how to execute it. Daisy then conspires with her, Cat Bee and Candy Cat to commit acts of mischief, and mayhem they were just small pranks and mischief at first. But it would later lead to murder. She together with the other experiments plot to give the scientists and personnel hell for their plight. She also eventually finds unexpected love through Mommy Long Legs who helps lift her spirits. However, Daddy Long Legs wants to challenge her for the relationship. But, his actions prove futile because of his reputation and harem. She later proves he's no match for her, and puts him in his place.

Everything is okay, until one of the corrupt, head scientists captures her and has subjected through horrific torture. And then does something that makes her forever flip like a switch and possibly brings the downfall.
This story is a slow pot boiler, so don't things