None of these girls seem to have a problem that they essentially sexually assaulted him. He didn't want to kiss, as others have said he is dense and really only cares about his fashion.
That is messed up, she knows that the kiss messed him up and she is just going to add to it. Main girl knew he needed alone time and not having a dozen girls gooning over him.
If he doesn't like it then grow a pair and tell them all this pushing around is making him uncomfortable.
Ushigome's strategy will backfire on her, she is being too pushy.
Nice satisfying ending. There will be spin offs? Will be interested to read those as well.
I wonder if they are going to put this in the new season of the anime?