Master of Demons

During the fight with Tartaros, Natsu is tasked by his father Igneel to retrieve a certain book. Against Igneel's wishes, he opens the book. The next steps become obvious: murder Mard Geer, take over Tartaros, and rebuild the Dark Guild. With Minerva by his side, he plans to fill the ranks with more half-demons, most of them women. NatsuxMinervaxBIG Harem. Sooo many lemons.