The anime will adapt the "Countermeasures Committee" arc.
 
The city's academies are divided into their own districts and are considered mostly independent.
 
The General Student Council acts as governing board to manage the academies as a whole. However, the group's ability to govern has come to halt since the mysterious disappearance of the General Student Council president. Countless issues have begun to surface throughout Kivotos in the absence of the president's leadership.
 
To avoid disaster, the General Student Council requests assistance from the Federal Investigation Club, otherwise known as Schale. In fact, Schale is the city's newest club and the last to be approved before the president's disappearance.
 
To accomplish its task, Schale relies on the guidance of a Sensei who can help them resolve the incidents around Kivotos. (Students are required to carry personal weapons and smart phones! Get a taste of the military action, love, and friendship the Academy City has to offer!) (Source: Anime News Network, Nexon, edited)

Letty is having a monster of a bad day. He can’t fly, breathe fire, and was just kicked out of his family’s lair. Hapless and homeless, this beast needs new digs, but where to start? Enter Dearia, the Demon Lord of Real Estate, making buyers’ dreams come true. Alas, that unique fixer-upper listing shown was infested with a horde of undead squatters—and no fireplace. House-hunting can be a beast!
 
 
(Source: Funimation)

Ten years ago, the World Tree that protected peace and order of the world was being targeted by an evil organization called the Zakum. The Human race led four other races: the brave warriors, the intelligent magicians, the agile archers and the sly thieves in a fight against the Zakums. In the end, the World Tree activated self-destruction to protect itself. However, the other races thought it was the Human race that destroyed the World Tree. When the World Tree was destroyed most of the races had nothing left, so a number of them went to Maple Island thinking the ones who stayed would die. They escaped Victoria and lived on Maple Island where living is getting harder and harder. Since then, a never-ending war between the different races began. 
Ten years later, the main protagonist, Al, is determined to revive the World Tree. Al and his companions begin their journey to seek the seeds of the World Tree. At the same time, the Zakums reappear&hellip; 
(Source: Wikipedia)