YaoiEz's manga / #Older Uke(21)

There’s Kiyohito, who continually cheats in whatever relationship he is in. One day, while he was sitting at a bar, a man named Hisashi comes stumbling in. Hisashi’s got less morals than Kiyohito, but despite being a crazy guy, Kiyohito can’t bring himself to hate the guy. When they are together, everything feels good…?!

Uke likes best friend who got married --> uke gets drunk --> seme works at bar --> takes to his apartment upstairs --> uke calls "mikuni" which is his best friend's name as well as seme's last name