The Etherious Knight-NaLu-

As one of the rarest and strongest knight in the Alvarez Empire of Alakitasia, and the leader of the Nine Demon Gates, Tartaros, Natsu Dragneel is a highly respected noble knight feared by many because of his cold personality.

Trained and raised like a war machine, he had no time for the things he like to do or for the love he never had.

With an emotionless expression and without a bat of an eye, he kills mercilessly.

One day, he has been hired to protect the daughter of an important aristocrat of the Fiore Senate. It was a highly paid job with a more relaxing schedule for him rest from the uptight warlike world he's been living in.

Paired with an optimistic and cheerful girl to be his lady to serve, will Lucy be able to change his world?

Disclaimer; Hiro Mashima owns Fairy Tail