folded like a masochist that he is...tbf that lady does hit the right spot for him as well as her being a domineering one at that...
Kanako the perfect foil to Ueno and his journey of self-discovery and personal growth. Ironically enough, despite being seen as the 'big sis' type among her friends she's by far the most immature. Chisaki and Tsubomi are changing little-by-little, but Kanako legitimately wants the status quo to be maintained. I think that without bullying Ueno, she really doesn't have a damn thing left going for her.
This is why she considers them a 'pair', and decides to bring him down with her out of selfishness. She can't move forward, so she'd rather move backwards and Ueno is the perfect victim for this.
Real crabs-in-a-bucket scenario, except with degeneracy lmao