It's bl reincarnation manga..the uke travels into a (game or novel) and ship the bl couple and manage the seme's fanclub but the seme falls in love with the uke
It sounds like chapter 3 (iirc and I might not) of I’m Mediocre ♂ but I’m Loved in a Different World.
This the one..wow u found it fast (▰˘◡˘▰)thank you for the help..
It's bl reincarnation manga..the uke travels into a (game or novel) and ship the bl couple and manage the seme's fanclub but the seme falls in love with the uke