hey i'm looking for a drama where the male lead is aggressive and really mean at times but is actually really nice on the inside.

Example - Kurosaki-Kun no Linari ni nante naranai

genres: Perferably romance and in a school setting

Thank u in Advance :)

-Itazura Na Kiss (various versions)
-Boys before flowers (various versions)
-Master's Sun
-Devil Beside You
There are a lot of K-dramas like that, but I don't remember their names at the moment. 
Thanks i've already seen itazura + playful kiss and Hana yori yori dango. I'll try your other suggestions too thanks again :)
Beautiful Mind
Falling for Innocence
Heart to Heart
Oh My Ghost
The Greatest Love
Love Me if You Dare
Who Are You? (2008)
Protect the Boss
Miss Rose
Hyde, Jekyll, Me
Madame Antoine
Wild Romance
Pretty Boy
Thank u for the recs :)