the only ones i can think of are some by kanda neko（￣へ￣）
i'm not sure whether they're the ones you're looking for, sorry :/
Interested
http://www.mangago.zone/read-manga/puchitto_hajiketa/
http://www.mangago.zone/read-manga/korotto_ochita/
http://www.mangago.zone/read-manga/porotto_koboreta/
i think these ones are related.
i'm not sure whether it's a cafe and turns into a gay bar at night, it's been a long time since i read them...(￣∇￣")
Yeah related but no it's not that one. Just read that one so I thought about the one I'm looking for.
Any of these? (Sorry if I couldn't help):
However, it's missing the cafe during the day part.
• http://www.mangago.zone/read-manga/pinup_boy/-
- (related story) http://www.mangago.zone/read-manga/otoshiana_ni_hamerarete/
Missing the gay bar at night part but it does turn into a bar.
• http://www.mangago.zone/read-manga/12_ji_kara_hajimaru/
No it's none of those. Thanks for trying though.
I think the author for this made other stories connected to this one or go along with it. The story is in a cafe. This cafe turns into a place for gays at night an there are many couples. One of the couples has like someone related to the manager or something like that in one and he works there.