The Insomniac (L x reader)

Name: (F/N) (L/N).
Age: 22.
Relatives: dead.
Description:
Miss (L/N) has been in the asylum for 6 years, and in that time has had no contact with the outside world. She has insomnia and doesn't speak; she can, but chooses not to. Addiction with sweet things, mainly lollipops. She claims to see 'ghosts' or 'Shinigami'. She is crazy but extremely intelligent.

You're an insane girl from the asylum but are brought out early because of a certain raven-haired detective. He claims that you can help him with the Kira case and together you go on a risky mission to find Kira.

(First fanfiction, there is a lot of bad grammar and mistakes in the plot.)