At the age of 8, Park Ju Hyeong is adopted and sent off to Italy. Now an adult, he is known as Vincenzo Casano.
He is a Mafia lawyer and consigliere. ( Advisor and dispute reconciliation expert.) Warring factions within the Mafia force him to flee to South Korea. There he falls in love with Hong Cha Young. a lawyer who will do anything to win a case. Vincenzo manages to achieve some social justice there, and in his own way.
Jang Jun Woo is an intelligent and hardworking first-year law intern at the firm, who is polite and sincere. Despite his boyish charm and good looks, Jun Woo can come a cross as awkward and naive. Prone to making mistakes, he is often trouble at work.