sounds similar to Under Grand Hotel
https://www.mangago.zone/read-manga/under_grand_hotel/
It's probably this one -
https://www.mangago.zone/read-manga/tsumibito_no_kiss/
Check out 5th chap for that story
Was it Manga or manhwa? Cause I think I read smt similar but it was manhwa/manhua
Yeah this is it ….thank you
Thanks
Welcome i always remember old one pretty easily enjoy
It’s a BL manga in jail……seme is notorious criminal ….uke is underage and in stealing case. He goes to same jail as seme …..seme protects uke in exchange to sleeping together…..later both develops feelings towards each other…..seme sends uke out of jail to his brother….there is extra where uke visits seme in jail