The Unknown Of Magnolia (To Be Edited)

Lucy Heartfilia is a 17 year old teen that transfers to Magnolia High School.
Natsu Dragneel is also 17 years old and attends Magnolia High School he's associated with a group called Fairy Tail.
Lucy falls head over heels for Natsu but what she doesn't know that he and his group Fairy Tail are hiding a dark secret.
What is this dark secret?
Will Lucy find out?

Disclaimer: This story contains, violence which consists of blood and gore, strong adult language, and a slight lemon