I'm looking for something where the male lead is fairly cool and the female lead is quite strong, and "impenetrable" / emotionless on the surface, but falls in love and turns loving and "soft".

Examples:
1. Innocent Man (a.k.a Nice Guy)
2. Yong Pal

Anyone know any other similar ones?

Doctors
Falling For Innocence
Hotel King
I Hear Your Voice
It's Okay, That's Love;
That Winter, The Wind Blows ;
Me too, Flower!
Miss Korea ;
Uncontrollably Fond ;
The Princess' Man ;
Sweet Stranger and Me ;
Beautiful Mind ;
Falling for Innocence ;
Fantastic ;
Secret Garden ;
King2Hearts ;
The Full Sun ;
Something About 1 Percent ;
Joseon Gunman ;
Sungkyunkwan Scandal ;
Cunning Single Lady ;
Second to Last Love ;
The Vineyard Man ;
Blood ;
Scent of a Woman ;
All About My Romance ;
Hero(2009) ;
The Snow Queen ;
Rooftop Prince ;
Twenty Again ;
Witch's Romance.
Bachelor's Vegetable Store!