Kang Seulgi harbors a powerful yet extremely unstable Alice, and has suffered tremendously while growing up because of it. Trained to become a killing machine at the tender age of five, she's been ostracised by majority of the student body. Only having the equally isolated Dangerous Ability Alice users as her company, a miserable life is all she’s ever known.

Jeon Jungkook isn’t crazy, not really—he just has another voice inside his head that isn’t his. It’s a peculiar voice that’s constantly telling him to kill every living being around him. Well, almost everything. It seems to remain silent whenever he’s around his teammate and childhood friend, Seulgi. He isn't quite sure why, and no one else is, either. But the voice is getting stronger as each day passes and he's afraid the day will come when he won't be able to handle the voice anymore.

Park Jimin has a Dangerous Alice ability, but you wouldn't be able to tell unless you asked. Completely unlike his other fellow Alice types, Jimin has been widely regarded as an angel who lives among demons, as a kid who just got in the wrong crowd. There was more truth to that statement than they knew—Jimin's growing concerns over the manipulation of the academy towards the Dangerous Ability Alice users has been growing exponentially as a dangerous mission looms over them all. Will he continue to fight for the academy, or will he fight for what he finally thinks is right?

The lives of these three teenagers are more intertwined than they know, and with their most dangerous mission coming up, will they have defeated their demons by then or will their demons fight alongside them as they continue the path towards hellish killing?