During this event, you will be playing a character that could be found on the pages of a young adult novel or on a teen drama show - think Buffy, Teen Wolf, Twilight, Vampire Diaries, Shadowhunters, etc, to name some of the more famous examples.
To that end, chew the scenery, live it up large and let it get messy.
Construct your character and deconstruct/subvert the genre as well - feel free to choose from one or more of the archetypes/scenarios seen below or find your own on TV Tropes or on the pages of your favourite YA novel and blend them into the Chase the Shadows factions.
Here are a few to get you started:
(https://tvtropes.org/pmwiki/pmwiki.php/Main/SecretCircleOfSecrets or https://tvtropes.org/pmwiki/pmwiki.php/Main/BenevolentConspiracy)
(https://tvtropes.org/pmwiki/pmwiki.php/Main/LoveAcrossBattlelines or https://tvtropes.org/pmwiki/pmwiki.php/Main/DatingCatwoman)