Superhuman Era

Unknown monsters have appeared on Earth, alongside ‘Superhumans’ who appear to dispatch them. With these mysterious monsters and superhumans, a new ‘Superhuman Era’ begins!
If someone said ‘Super Man’ really exists in this world, would you believe it? Every time a monster appears, a student– or at least looks like a student, who has superpowers, kills the monster. But… who exactly is this student? And where did these monsters appear from?