The countdown to extinction begins on Sunday with the arrival of the Septentriones, otherworldly invaders set on the eradication of mankind. Caught in the crossfire, Hibiki Kuze and his friends join in the war for humanity's survival by signing contracts with demons to become "Devil Summoners." Soon, their abilities attract the attention of JP's, an underground agency led by Yamato Houtsuin. Once recruited into JP's, Hibiki and his friends fight and bond alongside other ordinary citizens who are Devil Summoners. However, with each new day, another Septentrione appears to wreak havoc upon Japan. Even if many lives are lost in the process, before that night ends, the young summoners must defeat the invaders at all costs.

The Grand Magic Games reaches its climax following Natsu Dragneel and Gajeel Redfox's stunning victory over Sting Eucliffe and Rogue Cheney of the Sabertooth guild. This success pushes the Fairy Tail guild closer to being crowned the overall champions, but obtaining victory is not the only challenge they face. A mystery still surrounds a hooded stranger and the ominous Eclipse Gate, leaving more questions than answers. More crazy adventures are on the horizon for Fairy Tail as their destructive antics and joyful rowdiness continue unabated. Their greatest trial is quickly approaching, but united as a family, the guild will always be ready to face any threat that comes their way.

Although Fairy Tail has disbanded and its members are now spread far across Fiore, Natsu Dragneel has not given up on reuniting the guild he and others once called home. Along with his companions Happy and Lucy Heartfilia, he will stop at nothing to keep Fairy Tail and its fiery spirit alive even as they face their most difficult trial yet—the invasion of Fiore by the Alvarez Empire's immense army and their all-too-familiar ruler.

The 11-year-old Marui triplets could not be any more different. The oldest one, Mitsuba, is sadistic and kind of mature for her age. The middle one, Futaba, is perverted and very athletic and has the strength of a full-grown man. The youngest one, Hitoha, is generally very quiet and gentle but when push comes to shove, she might just be the strongest, the most perverted and the most sadistic out of the three. The three are all in the same class, led by the newly graduated teacher Yabe Satoshi. He usually gets pushed around by the girls and, on occasion, abused but the triplets also try to lead him and the new school nurse, the clumsy Kuriyama Aiko, together. However, Yabe had no intention of dating Aiko and the methods the triplets use to accomplish their goal are highly unorthodox...