Art © Artpathie https://artpathie.deviantart.com/
Catty Noir © Mattel
Kaycey ©  sinako777

Catty Noir from Monster High in a punk/heavy metal look, now named Kaycey (codename K.C.). Also, cyborg parts.

One night, Monster High was having a talent show and everyone was getting ready. Catty Noir, who is usually calm, felt worried that she could lose against Casta Fierce. Recently, whenever she did her best, she just kept losing. She had enough of it.

As she was in her dressing room, a fox woman walked in, telling Catty she had something that could help her. It was Cyber Carmelita. She gave her a bottle of pills she says will help her for the show. In a moment of desperation, she took one. It made her feel much better, too better in fact, as her inner demons came to the surface.

Later, while Casta Fierce was alone in her own dressing room, someone broke in and beat her to death. She was missing that night, no one could fight her body. Catty won that night.

A few days later, the were-type girls were acting weird, as they started to form a pack with Catty as their leader. She had a little makeover, more metal-oriented. They all took pills from the strange blue drug, as more and more students went missing. No one knew what was going on.

During prom night, Catty and her pack started to sing. Everyone else has been using the drug. Catty's music made them attack and kill each other but only she and her were-type minions came out alive. They started to eat the dead bodies off the dead students. C.C. (a.k.a. Cyber Carmelita) and Jeejee learned that their new drug is a little too dangerous; it gave them cannibalistic tendencies. However, Catty was chosen to become a high rank demon under the name of Kaycey. She was now a demon thriving on wrath, using her voice like a siren's hypnotic chants. Her minions also got cybernetic upgrades to salvage them.

K.C. (Kaycey's nickname/codename) was hard to control at first, being a wild and savage beast. But when she met Jeejee's mother, Dr. Olive, K.C. became terrified of her, finally learning who's the real monster around here. She now takes orders from Jeejee, who sees her as her boss.