Natsu and Happy always kept their true strength in secret, but after a chance encounter with a certain female, they might not need to do so anymore. Though, one bad day is enough to change ones live, including a certain Dragon Slayer. Fairy Tail has more trouble as a dark guild has declared war with them. Will they win? Smarter Natsu. OP Natsu and Happy! Strictly Natsu X OC (AU)

Natsu, revealed to be E.N.D, was attacked by the very people he cared for. Now on the brink of death, he was saved by an unlikely friend. Now, together with a brand new guild, will Natsu be able to beat a force who is after him? Also, why is Acnologia and E.N.D girls and why does Wendy have wings on her back? Stronger Natsu, Fem Acnologia and E.N.D, Natsu x Harem