Okay I started it, it's nothing special, but pretty funny to read.
It's basically the opposite of another harem series I love: https://mangadex.org/title/44394/kimi-no-koto-ga-dai-dai-dai-dai-dai-suki-na-100-nin-no-kanojo.
Here the MC will do anything to conquer the girl, but after seeing the panties will totally ignore them; in "100 girfriends" he'll conquer them without doing much, but then he'll treasure each of them like gems.
Didn't make me laugh as much as "100 girlfriends", but still a really good manga...
Now just a question: Why raws stopped at chapter 21? Something happened to the author?