You downloaded a mysterious app you'd never heard of before. It had no name. Just a black screen and the words "Continue?"

You clicked and freed an ancient demon trapped in a digital prison. Now it's part of your phone, your life. You're bound by a magical contract that can't be undone.

Kael can only communicate with you. At first, he's angry at his "binding", despises you... but then he begins to see something special in you. You can suppress him, befriend him, love him - or be the one to set him free... and maybe the world will pay for it.

But who said a demon can't be tender? Or that a human can't be dark?