Passion of a Dragon [Sequel to My Dragon Slayer] [Fairy Tail NaLu Fanfiction]

Lucy and Natsu are now married; it's been a year and a half since the crisis of the Everlasting Storm. The guild is running as amazing as usual due to all of the powerful members in it. See the romance of Lucy and Natsu take a further step ahead, until a mysterious boy named Toshiki shows up claiming to be the younger brother of Natsu.Toshiki is Natsu's step brother, also a Fire Dragon Slayer taught by Igneel. And suddenly Lucy just passes out like nothing happened at all, will she be fine?