Years have passed since the defeat of Zeref Dragneel who is now good. The Fairy Tail members have decided to settle down and start a family of their own join them on their journey through raising the next-gen kids.
It's getting near the final battle with Zeraf. Natsu has practiced his magic excessively for a whole year to be able to beat him and Gray trained to destroy Zeraf's strongest demon E.N.D. When all the guilds, light and dark, in Foire band together as the end of the world begins.