Take a look at the first run of Dark Horse Comics' "Buffy The Vampire Slayer" (1998), written by Andi Watson and illustrated by Rick Ketcham, adapting characters from the TV series:
"...'Buffy' was a cheerleader, fiesta queen and prom princess at 'Hemery High'.
"But her seemingly ordinary life was soon interrupted when she started having dreams...
"...in which she saw women from different places and times fighting demons and monsters.
"Soon enough, she found out about the cause of these dreams...
"...when she met a man named 'Merrick'.
"He told her about her fate and became her first 'Watcher', given the job to train Buffy...
"...teaching her how to control her powers and train her in skills...
"...to help in her survival as a 'vampire' slayer..."