Although I can see the writer is trying to make the main guy a deeper character (which would give this manga a 4/5), I can't help but see him as just another cliché guy-turned-feminine-to-be-an-uke-to-the-cool-seme-I-wanted-to-write. Like... they almost have a 10 year difference! And the uke guy (main character) isn't even 18!! BRUH. Anyway, pretty standard yaoi for it's time so it just gets a 3.
Gomen Ne Idol-kun