any drama where ml takes revenge

where the male leaad is poor and then turns rich

Also:

• Lucifer - poor to professional, a lawyer
• Money Flower - orphaned/poor to professional, a lawyer
• First Love
• Green Rose
• Personally, i dropped these dramas, but it has the plot you are looking for, so maybe you'd like these:
  • Queen of the game
  • Goodbye Mr. Black