A romance? manga about a very shy nerdy boy who gets bullied by a girl whom he might have a crush on?

I imagine this manga will be extremely divisive. It is definitely not cute, unlike some other "bullying" manga, where the bullying seems innocent, more like the classic kid teasing their crush type. Here, the bullying is very much bullying, and the protagonist is agonizingly unhappy through the entire thing.

I get the impression that this is a fetish manga, playing to those particular people who have a kink for humiliation. The rest of us aren't bound to like it much. Nagatoro is cruel. This will not be enjoyable to read for anyone who had empathy for victims of bullying. And her senpai is made to be the most sniveling unpleasant kind of nerd, who has no backbone whatsoever, all to the purpose of him constantly pouring sweat as he is humiliated in various ways.

If you're into this kind of thing, then more power to you. But for the rest of us, I recommend passing.