The Dark One

Shinichi is the savior. He must use his light magic to defeat the Darkness and bring balance back to Japan. With the FBI's help, this teen detective has a chance to defeat The Dark One. What will he do once he discovers who they are? Will his heart get in the way of destroying them?

Shiho was raised in the Black Organization and knew only of the darkness that resided in all hearts. Will a certain Detective change her feelings about the light, or will it just push her over the edge?

Inspired by ABC's Once Upon Time-will be changing a few plot lines and is NOT canon to either fandom but will reference important character developments. I do not own any of the characters, they will either be from Detective Conan or OUAT.
P.S. If anyone knows the artist to the cover, let me know. I found the image on Pinterest, would love to give the artist credit.