(High School) and/or Drama where Unpopular/Nerd Guy have a crush on the Famous/Popular Girl

Extracurricular

Be My Boyfriend

 admonike:

Extracurricular

Be My Boyfriend

Thank you :) I have seen "Be My Boyfriend" that's why I'm wanting something more. and also Extracurricular is on my list :)

 Edwxrd:

Thank you :) I have seen "Be My Boyfriend" that's why I'm wanting something more. and also Extracurricular is on my list :)

in my opinion, both the reason FL on both drama fall in love as soon as she  know him better, in my country there's a wise man said "witing tresno jalaran soko kulino" -- meaning love grows out of habit

Same reason with ML in  Bring It On Ghost - love grows out of habit

Maybe this: Abyss 

Or this: She Was Pretty   

I went thru my list of watched series and that's the only thing that somewhat fits your criteria. But this is all after they become adults, and fortunes have reversed in a sense, so the nerdy guy is no longer nerdy but a hot guy, and the pretty girl is no longer pretty just ordinary. But in both the guy had a crush on the girl in high school or growing up but the girl was not interested.