Being human? Not so fun after living 500 years on the run and having enemies left and right.
After having the cure shoved down her throat, Katherine flees not wanting her enemies to know that she's now nothing more than a fragile human- specially not the original hybrid Klaus.
She ends up in Beacon Hills, thinking that nobody would look for her in such a 'normal' town and decides to pull a 'Stefan' by enrolling in high school, pretending that she's not a 500 year old vampire-recently-turned-human.
Mingling with the humans, and the not so humans, results in a weird BFF friendship with Lydia, a somewhat sibling bond with Scotty, a relationship with Allison similar to her and Elena's relationship , a frenemy status with Peter, a love-hate relationship with sarcastic Stiles and some crazy sexual tension with sour wolf, Derek.
Not to mention her sidekick witch Liliya, who is pretty much a female version of Stiles and Silas searching for the cure- her.
"Please, I'm Katherine Pierce. I'm a survivor."