The only reason I didn't give it 5 stars is because the uke is way too dumb at the beginning, like wayyyyyy too innocent (he sees his brother and his 'best friend' doing more than making out and he's like, 'oh, is that what friends do?', like wtf man, you're not a kid, you should know that sort of thing...), but later he gets a clue and even asks the seme out.
All in all, they are extremely adorable together <3
Idol-kun wa Koi wo Shiranai