I read it on Doujin Moe years ago and I can't find it. It was about a women, big tits and glasses, looking for a job. She gets invited to this job fair thing? but gets drugged and wakes up in a wall and is being fucked by this rich guys. it ends with her recruiting another women.
pic unrelated
>>14138456
>>14138465
>>14138486
>>14138503
>>14138537
>>14138609
It's a little different than what you said, but I think it could be:
[Chanpon Miyabi] Pervertspotting
>>14138656
that's it.
you are my champion.