[This boy's ability should not be categorized as unique, but since he showed potential, who cares, right?]
Of course, many other special instructors, especially those with related majors to metal, weapons and daggers manipulation abilities, were tempted to 'snatch' this good student from that hell teacher.
The hell teacher got his name because he liked to pretend to be a nobody to catch naughty students and then punished those students.
Aside from that, this teacher was also famous for being strict in his class and many students didn't even pass his class.
The majority failed the classes and had to retake the class if they wanted to hone themselves.
The so-called hell teacher only sent that comment to declare 'sovereignty' over the student that he favored, so he didn't care about other people's reactions.