I can’t seem to find one that I’m pretty sure used to be popular.
I believe the premise was it was a male who got isekai’d or stumbled upon this school or home, and he was the only male.
Don’t remember if they show any other characters but the ones I do remember were 6 girls that essentially are together the whole time and keep convincing him to fuck all of them at the same time.
I have a feeling it got removed though because it had at least 2 or 4 chapters translated in english and then 2 more in Japanese, was a popular one I believe and now I can’t find it.