Codename: "Alice"

Wonderland. An infamous organization of teenage girls known for murdering several in cold blood without reason and without hesitation. Only known by their given code names, there are no clues whatsoever to their true identities. Especially the top five members: five 17-year-old high school girls actively participating in the organization's evil schemes.
"Alice." "Cheshire Cat." "Mad Hatter." "White Rabbit." "Queen of Hearts."
The five codenames are the only thing known about the mysterious murderers.
But on the inside, amongst the few members of the organization, they're well known as demon-slayers. Spread out around the crowded city of Manhattan, New York, planted in the hearts of unsuspecting humans, are demons' seeds. They're invisible to the naked eye of those without powers and can only be seen by the chosen girls--the girls of the mysterious organization Wonderland.
Upon spreading across the entire human heart, these demons are capable of destroying cities, countries--possibly the entire world given enough time to gather up their powers. They roam the streets at night time under the moonlight, awaiting their chances, but the girls of Wonderland have vowed to destroy every last one of them once and for all.
Things have always gone off without a hitch. Leaving unidentified bodies lying in the street, deprived of the seed but also of the heart, the girls have successfully slayed demon after demon. But these demons start appearing in broad daylight--and what's more, everyone still keeps their memories in tact. And a mysterious boy who is able to see them appears as well?! The girls of Wonderland will have to step things up a notch to keep their identities under wraps as well as finish off the demons invading the earth! Are Alice, Cheshire, Hatter, White, and Queen up to the task?