"Are they really middle school students?"
Question of the decade
It is fucking weird the mangaka based this on middle schoolers fucking when they're all built like and act like high schoolers.
Middle schoolers yet has the body of widow with 3 kids
They be puttin some growth hormones in the food there, damn
I mean, nowadays middle schoolers can have build like this. We are currently in the peak of human development with so many option of nutrition and excellent healthcare in the span of history
While living in Europe, we had 3 concurring classes in middle school/primary school with about 50:50 ratio in 30 each so ~15 in one, only 1 girl had above average cup and at the end of 8th grade (15yo) was about a D cup, while the rest were ~C at most.
I know because, ice queen airheads they were all along 8 years of interacting, decided to make a flashing photo all together after graduation ceremony party and "mysteriously" leaked it to few boys, which was obviously shared amongst all guys lol
Pretty sure it's fan service, unless there was a secret government plan since 20 years ago and they spiced the food with hormones intentionally to boost birthrates...