Cassandra "Cassie" Hack, daughter of Dr. Jack and Delilah Hack, grew up in western Wisconsin. Her father left soon after she was born, leaving Cassie with her overbearing, eccentric mother who worked as a cook at a nearby high school. A timid wallflower, plain-looking and unattractive, young Cassie was verbally and physically abused by her classmates. Never having a friend, Cassie was ostracized because she wasn't pretty and was poor and ill-dressed. This prompted her unbalanced mother, the "Lunch Lady", to kill every child at Cassie's school that had somehow hurt or insulted Cassie and serve them as the school food. Cassie, witnessing her mother's last killing spree, promptly called the police. She managed to save the life of her mother's last victim, but was forced to witness her mother's death when she committed suicide.

Cassie was placed in a foster home and attended a new school. She detested her fanatically religious foster parents, but endured, desiring to be accepted by someone. She began training in various martial arts and fighting techniques. In the meantime, she tried to find her father, utilizing the internet and whatever resources she could find. As time went on, she met a boy named Y/N. Y/N was a rather scrawny and shy kid. But there was just something about him that attracted her to him.

Cassie had to be the one to ask him out.

Two years later, children began disappearing once more, signalling the return of her mother, reborn as a vengeful "slasher" trying to continue its murderous spree. Feeling responsible for the deaths, Cassie confronted her mother once again and shot her. Driven by guilt and lacking any connection to anyone or anyplace, Cassie left her foster family and went on the road, and took Y/N with her.

Cassie became determined to seek out slashers and stop their rampages wherever she could. She also hoped that she might find a clue to the whereabouts of her father, but for a long time, found nothing.

On one of her adventures, Cassie and Y/N came to Chicago, where she hunted a killer known as "the Meatman", who was responsible for the deaths of several teenagers. They eventually encountered the Meatman, but discovered that he was not responsible for the murders. Cassie and Y/N befriended the Meatman, a misshapen man named Vlad, and together they hunted down the actual murderer, a local minister/assassin with Mafia connections. The trio began travelling together in a van bought with Cassie's inheritance, with Vlad acting as their bodyguard and muscle.