Gold digger male lead

Hi I'm searching for a drama where an ambitious male lead enters a relationship with the female lead for money/to advance his career/earn a position.. basically a make gold digger. He doesn't love her at first but falls for her after a while. Doesn't have to be the main, could be the second couple in the drama. 

Thanks in advance 

 Czakhareina:

• That Winter The Wind Blows
• Innocent Man
• High Society

The first one is the only one I haven't watched yet. Thanks!