The Crimson Dragon

Natsu is trying to get stronger and a mysterious man comes to help him. Years later Natsu and his group returns to Fairy Tail. He will know more about his past (and future) and finds ways to prevent the catastrophes that are coming his way. There will be a few pairings. Natsu will be getting some attention from the ladies (not all of them though). Natsu becomes an epic badass!