Kang Dong-seok overcame poverty and left his small town to become a successful prosecutor. A genius with an aloof kind of charisma, his arrogance and ill temper puts him at odds with many people, including his estranged family. After 15 years, Dong-seok is transferred back to his hometown and reconnects with his roots, re-learning the value of neighborly warmth in the countryside and the true meaning of love and family. His misfit siblings include Dong-hee, his younger brother who works for a money-lending business; his older brother Dong-tak, an events emcee who dreams of becoming an actor; and his twin sister Dong-ok, who is developmentally challenged and remained in a childlike state ever since an accident during their childhood.
Quick-tempered and swift-fisted, Dong-hee was kicked out of high school for getting into a brawl in an attempt to protect his classmate Seo Jeong-ah, who came to him three months later to tell him that she's pregnant. Fifteen years later, Dong-hee finds himself living with Seo's twins, who are being raised as his siblings, while scraping together a living as a bodyguard in the same company as Dong-seok's first love, Cha Hae-won. Despite her hardships in life, such as her father's bankruptcy, Hae-won is an upbeat woman, and eventually the feelings between her and Dong-seok are rekindled