Seitarou Tanabata is all fired up for his first teaching job at a high school
But Nanba Building 13 High School l is filled with delinquents.
The students are troublemakers and even the teachers are odd.
Seitarou is already bullied by 4 students in the 3rd year, class 13 on his first day.
Then, the number 1 troublemaker, Hajime Sugoroku, returns after serving his suspencion.
Can Seitarou ever become the teacher he always wanted to be?
Sorry. So many questions 
popped into my head
آسف. خطرت أسئلة كثيرة على بالي
Tut mir leid … Mir brannten
all diese Fragen auf der Zunge …
Lo siento, pero tengo
muchas preguntas en mente
Lo siento, pero tengo
muchas preguntas en mente
Désolé… Beaucoup de questions
me viennent à l’esprit,
Mi scusi.  Ho tante domande per la testa...
Desculpe... Surgiram tantas
questões em minha cabeça.
Простите. В голове столько вопросов,