lol being late is a bit impolite but 5 mins isn't as bad as like, 15 tho i'd still also be worried about being on a crowded train even with a friend or so tho i'd prolly prefer getting a direct ride or so but dang they sure are flexible with schedules/freedom, i can imagine some parents who wouldn't have let their kids see a movie with friends during middle school without one parent supervising
And i guess it's good to be responsible and do class duties/cleaning up but other than a lot of mess/immediate spill or dust buildup, seems like something that should be done weekly versus daily. or whoever the 'student council' are to be in charge of it or so (tho surprised not to see some kinda comedy about some ocd clean freak volunteering to do cleanup [if not someone doing such a half assed/bad job that they don't get asked again]) , tho she seems pretty uptight/inflexible for her age but i guess it worked out? Just being stubborn/tsundere but it could've easily ended up with her bullied if not just isolated