Picatrix

Winnie Foster's been having a bad day. First, she finds out that she's been passed up for a promotion at work - and then as she heads home, she realizes her car's been stolen.

While walking home, she decides to take a shortcut through the woods. Just when she thinks it can't get any worse, she suffers a fall and finds herself thrown into another world where demons and angels are a reality, and a troupe of magical girls is after her to join.

So what's she do? She runs away with the demon king after being offered to him as a sacrificial bride.

Can be found here.

Provides examples of:
 * Amnesiac Liar: Eric decides that it's a great idea to have Winnie pose as his wife while they're traveling. . Hilarity ensues.
 * An Ice Person: Winnie's magic is shown to be this.
 * Arranged Marriage: Adam tries to escape one of these.
 * Badass Damsel: Winnie,, still manages to strike (something resembling) fear into the heart of the Demon King.
 * Belligerent Sexual Tension: Arguably,.
 * Bishie Sparkle: It happens.
 * Bishonen: Several.
 * Cassandra Truth: Winnie tries to tell Eric where she's really from. It doesn't go over well.
 * Dead Little Sister:
 * Erotic Eating
 * Fan Nickname: Nina, aka "Pink Haired Bitch."
 * Fan Service
 * Half-Identical Twins: Samael and
 * Human Sacrifice: But in this case, it's a sacrificial brides.
 * Identical Stranger: Princess Hazel and Winnie
 * Immortality Begins At Twenty: Both the demons and angels seem to have this going for them.
 * Jerk with a Heart of Gold: Eric.
 * Love Triangle: One of these results in
 * Magical Girl: There's a small group that works as demon hunters, with costumes and all.
 * Mayfly-December Romance: Azrael's a demon, Winnie's a human. At least Winnie doesn't care.
 * Mistaken for Cheating: Azrael... Poor Az.
 * Murder the Hypotenuse: Someone tries this. It doesn't really work out in their favor.
 * Or did it? The character has yet to get any comeuppance for this...
 * Naked on Arrival: Well, not quite, but when is found by Eric and his men... Her state of dress is questionable.
 * Oblivious to Love: Adam's just a touch too jealous when it comes to Vanessa. Of course, he doesn't get it.
 * Power Crystal: All the magical girls have these in the first incarnation of the comic.
 * Power Nullifier: Azrael almost gets Winnie to use this in order to prevent her from accidentally killing him.
 * Series Hiatus: It happens from time to time...
 * The Empath:, whose powers seem to promptly take care of.
 * Theme Naming: The magical girls are named after seasons, the angels and demons have mostly angelic or demonic names...
 * The Mourning After: Azrael spends 40 years angsting after.
 * Tomes of Prophecy and Fate: Apparently all the kings have one of these.
 * Voluntary Shapeshifting: In the case of the demons, who can change form into cats.
 * White-Haired Pretty Boy: Samael.
 * You Gotta Have Blue Hair: Winnie.