Ri Je Ma (1837-1900) was one of those who made big contributions to developing the Oriental medicine in the 19th century.

The novel deals with his tireless efforts to define the medical theory on four kinds of physical constitutions for the first time in the field of medical science, and crystallize the theory in his book "Tonguisusebowon" (four volumes) in 1894. Ri read a lot of books from his early years to possess broad and deep knowledge about different fields and devoted all his life to the research into traditional medicine.

The novel is now getting great popularity among people.