Guilty Ties: Love in the Shadow of Crime- Fyodor x Reader

(y/n) lived in Russia with her mother when she was a kid. Her mother rarely authorized (y/n) to go outside, because she was "special". One day, she made a friend. Her first true friend. Unfortunately, because of her mother's work, she had to move to Japan. She lost contact with him, and only met him years later. The (h/c)ette never saw her father, but further in the story, she'll find out who it is. This revelation will change her whole life.

---------------------
!!!Before book called "The demon's Angel"!!!
The story doesn't fully follow the manga/anime