This is actually the only time I've seen this author draw a proper ass. Even if the angle on the wrist looks a little odd, at least the hip and waist anatomy finally make sense, he must have used a good reference for this panel.
I feel like he tells himself he wants revenge, but when it comes down to it he just wants to be aknowledged as being on the same level as his past "bullies"
Public school in Japan is pretty progressive though, well somewhat depending on prefecture. They're LGBTQIA+ aware and some have relaxed the dress code so that either presenting boys or girls can wear whichever uniform they wish. However I've only ever seen the girls wear boy's uniforms though...
Oh thank goodness the Japanese pronunciations were left in the Shiritori this time. I think the last time the TL didn't know about the "last-first" word sound game and just MTL'd the words
That cover art with the locker/casket makes me think of Snow White. I'm pretty poor at keeping track of named characters, I wonder if there's 7 in the main cast, excluding Hayami?