Well that was a goddamn rollercoaster. I found this last half to be more than a little off putting. A lot more melodramatic tropes shoved in at the end plus the teacher with all his baggage showing up at the end to be this weird "voice of reason" sort of character, it all sort of detracted from Akemi and Kai's personal journey's in favor quick dramatic turns. Thematically I found the conclusion pretty fucking sour too but that would be a whole thing to get into.