[Machine Translation] Is School a Black Company? Over 1,850,000 copies sold Popular healing siblings living together! An internship student comes to Minato and his classmates' school! Minato's class teacher is the somewhat unassuming Mr. Maki. Minato's class teacher is the rather unassuming Mr. Maki, but he must be passionate about his dream of becoming a teacher! Minato tries to close the distance between them, but Maki-sensei doesn't seem to open up to them... And it seems that he doesn't want to be a teacher...? He doesn't know how adults feel, but he can't leave it at that! Minato runs! A new graffiti of youth by the four brothers, filled with tender feelings for someone else.