Responses
http://www.mangago.me/read-manga/koakuma_no_sanctuary/
I'm pretty sure you're looking for this
YES YES YES! Thank you so much!! ٩(๑❛ᴗ❛๑)۶
(Yaoi) about 4 story couples they’re work assistant model, model, and congestion.
I remember last one,Director model and model Uke invited a group to restaurant and realized all them are lovers (men).
Sorry for my bad grammar. Hopeful help! Thank you!