Vincenzo Cassano is an Italian lawyer and Mafia consigliere who moves back to Korea due to a conflict within his organization. He ends up crossing paths with a sharp-tongued lawyer named Cha-young, and the two join forces in using villainous methods to take down villains who cannot be punished by the law.
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.