Responses
Ok I think it’s https://www.mangago.zone/read-manga/korotto_ochita/
Their the side couple in https://www.mangago.zone/read-manga/puchitto_hajiketa/
I could be wronf bc I feel like I’ve seen this trope in a few places idk
So the story i want to reread is a yaoi but I only remember the side story. The side story is in the main and it is a side couple. The side story is about an underage uke working at a bar and the uke wants to have sex with the seme. So the seme says he wants to wait till he is of age. And then at the end they finally had sex.