Meet Shin Sung Han, a divorce lawyer with a talent for settling even the most complicated cases. His name, which amusingly means "sacred" in Korean, seems at odds with the messy situations he has to deal with on a daily basis. But Shin Sung Han finds solace in the company of his two closest friends, Jang Hyung Geun and Jo Jung Sik, who are fellow "40-year-old youths." Despite the challenges he faces with his clients, Shin Sung Han continues to excel in his field with his expertise and sensitivity.