The young man Hibiki, who suffers from severe internet addiction, is forcibly enrolled by his mother in Elite Reeducation Academy. After suffering terrible treatment at the hands of the instructors there, Hibiki heads for the school roof to commit suicide. But he's stopped by a mysterious stranger, who makes him a proposition...
An instructor is negligent 
if he teaches without rigor.
المُعلّم متهاون إن درّسَ دون صرامة
Un instructor es negligente
si no enseña con rigor.
Un instructor es negligente
si no enseña con rigor.
É negligência um instrutor
ensinar sem o devido rigor.
Обучение без строгости 
Есть нерадение учителей.