In a post-apocalyptic world, where a plague like disease riddles the world, only the wealthy have the means to better themselves and stave off the plague. But what happens when two slum rats befriend two of the upper class, will the slums stand a chance?

Told from the perspectives of Gajeel and Levy, Lucy writes this: her greatest novel. In celebration of her dearest friend, she details the life of Levy McGarden, leading up to that fateful day. Levy McGarden, a brilliant bookworm and a talented solid script wizard, discovers a dark secret one day on a job. Throughout her investigations into the truth behind this secret, she grows close to her fellow guild mate, Gajeel Redfox. Introduced to the guild as a hardhearted Iron Dragon Slayer, Gajeel is slowly transformed into a caring man—one who would do anything for the small solid script wizard he had become so fond of. As the two grow closer, they begin to realize that they mean more to each other than that of a normal friend or teammate. They maybe even love each other. However, fate has a funny way of intervening at the worst of times.