The Great Ambition (2002)

Si Young is the first son of ark Hee Chan and knows the truth about why his father insisted that he must take over the family business. He is a cold-hearted businessman who often uses dirty business tactics. As he takes over the day-to-day operations of the guild, he grows into a strong leader. But Jae Young, his younger brother, becomes his own man and does not follow his older brothers business style. (Source: AsianWiki)