Hey guys! So I'm looking for a romance kdrama where the male main character goes from being a poor loser to being really successful. Something like Innocent man.

Any recommendations? 

When a Man Loves a Woman
http://mydramalist.com/5984-advertising-genius-lee-tae-baek 
ugly alert
dream high it's not like innocent man but the male lead becomes successful
History of the Salaryman
Get Karl! Oh Soo Jung
hmmmm well in shopping king louis hes rich but loses his memory and becomes a poor loser until he gets his memory back(where he goes back to being successful) its much more lighthearted then innocent man tho. 
Misaeng
I second Dream High and Beautiful Gong Shim