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?
If you don't mind, can you be 
the test subject after school?
إن لم تمانع، هل يمكنك أن تكون 
موضوع تجارب بعد المدرسة؟
Darfst dich gerne nach der Schule
als Versuchskaninchen anbieten.
Si no te molesta,
¿lo probarías después de clases?
Si no te molesta,
¿lo probarías después de clase?
Tu veux servir de cobaye
après les cours ?
Se non è un problema,
potresti farmi da cavia, dopo le lezioni?
Se não se importa, pode
ser a cobaia após a aula?
Не хочешь стать
подопытным после уроков?