There are more staff in a Japanese school than in my UK counterparts, or at least I didn’t notice them as a child.
School Nurse resides over the school medical room. There’s usually a bed or two, medical equipment like thermometers, first aid kits, stethoscopes, etc. The school nurse also does annual health checks on the kids, with charts displaying their growth, height, weight, dental records… The school seems to have a much bigger part in a child’s healthcare than in the UK, that’s for sure.
School dietician/nutritionist makes the school menus. Often, there’s only one for the entire area, which makes sense as the school lunches every day are made in a single location and then brought round to each school in the area before lunch. Since there’s no choice in school lunch, I guess a single person is capable of working out how much nutrition/calories are in each meal for everyone.
School librarians evidently do more here than in England, because I am sitting opposite one right now. She has an enormous stack of books, and is meticulously sellotaping, glueing and otherwise patching up all the loose pages.
Special needs teachers sit next to their kids during lessons. Japan much prefers inclusion for special needs kids, so if it’s possible, they have a helper during normal lessons. Of course, solely special needs classes exist, but they tend to have all the different needs lumped together in a single class, and they also tend to join the rest of the class in as many classes as possible.
The third in charge. I don’t know what the name of this person is! There’s the principal, who primarily deals with the school’s relations with outsiders (the PTA, the Board of Education, local authorities, etc), the vice-principal who deals with the running of the school, and the person who is third in charge. They seem to do more of the day to day things, making announcements, drawing up the timetables and special events happening in a day, MCing assemblies and that sort of thing.
Tea lady. Sometimes the receptionist, but mostly someone who is literally there to make tea and coffee. Of course, for guests to the schools and people having meetings with the principal, but I have a couple of schools where the tea lady makes tea/coffee for the teachers and has it all ready for us on our desks when break time hits!