The novel 『Evergreen tree』 was a prize winning novel, but Hoon Sim was an established writer who had written several works since 1926. After the latter half of 1920s, a movement to uplift the rural society was spread in various ways. Hoon Sim put emphasis on the illiteracy eradication campaign. Besides, he tried to describe a cooperative association campaign and a tenancy dispute movement in 『Evergreen tree』. Donghyuk Park and Youngsin Chai came to realize the limits of the illiteracy eradication camaign. It was thought that Hoon Sim wrote 『Evergreen tree』 after he read the biography of Yongsin Choi. This fact is very important. In order to understand this work correctly, we need to compare this work whose heroine is Youngsin Chai with the biography of Yongsin Choi. In this novel the hero and the heroine represented the same spirit. Their will to enlighten the people was strong equally, but they showed the difference in the method of the movement. As a result Donghyuk Park could be the heoric figure, while Youngsin Chai came back to self sacrificing person.