Koro - he damaged the moon, and he is going to do the same to the earth in a year. This powerful creature is immune to conventional weapons, can accelerate to Mach 20, the government is unable to kill him. Class 3E is given on the condition that Koro does not harm the students and the students are allowed to attempt to kill the creature.
Class 3-E is assigned the role of outcasts in the school, the rest of the students and teachers subject class 3-E to harassment. Lagging students and hooligans