Uke and Seme are both actors. Seme is super popular and called Prince, but Uke is unpopular because he plays evil characters. Until they participate in a variety show where everyone finds out the Uke is super cute. It has like 5 volumes and it's called Black and White or something like that. I just can't find it though and I'm going insane.
"I Think I Turned My Childhood Friend Into a Girl" I don't know if it maybe has a different name here.
Is it this?
https://www.mangago.me/read-manga/how_to_make_a/
Maybe this one? https://www.mangago.me/read-manga/how_to_make_a/
Omg if you upload volume 7 I'll love you forever