Allen has already come back to the dormitory and his teacher told him to rest for a few days as he just recently came back from a dangerous mission. This time inside the gate naturally they saw those powerful special grade monsters.
At first, everything is okay but later the situation becomes very serious as more powerful Monsters begin to come there. Naturally, even though they previously did not face any problem killing those Monsters, this time because a huge number of Monsters began to come toward them, they were already in a disadvantageous situation.
Also on the other hand, nobody can understand why suddenly a large number of Monsters begin to come toward them. They are just trying to finish their mission but who could have thought that they would face that many Monsters at once?