https://www.mangago.me/read-manga/kekkon_suru_kamoshirenai_otoko/
Could it be this one? Not sure tho
Yeahhhh that one!!!! Thank you soooo much!!!!!!
No problem!! I read it a long time ago but it was quite a unique story so it was easy to find, when I saw your question I took the chance to re-read it too
True!!! It's quite unique also i love the seme personality i guess puppy seme is kinda my thing and no matter how many unread mangas on my reading list if i like a particular story then i will re-re-re-read that manga again and again and again lol
The seme just passing by and saw a wedding between 2 guys then he came to blind date and got match with the uke, if i'm not wrong the seme was an orphan and they ended up married too