The series Graded Readers for Chinese Language Learners is composed of 50 books, divided into three subseries, namely folktales, literary stories and historical stories, corresponding to Levels 1-3 respectively. The rich and fun content and easy-to-understand language makes it easy for everyone, whether they are foreigners learning Chinese, children with parents of Chinese origin, ethnic minority students of the Chinese language, or even primary school students in China, to read this series. It enables the readers to gradually improve their Chinese reading skills and enhance their understanding of Chinese culture by reading and enjoying stories.

The “Literary Stories” subseries is based on the Four Great Classical Novels in ancient China. From each novel some epic snippets are extracted and adapted into 4-6 books, each with 20-30 thousand characters. Altogether there are 20 books in the subseries, six of which are from Romance of the Three Kingdoms, four from Water Margin, six from Journey to the West and four from Dream of the Red Chamber. Romance of the Three Kingdoms is a historical novel, which was set at the end of the Han Dynasty and the Three Kingdoms period. There are six books in this series based on this novel, namely Oath of the Peach Garden, Discussing Heroes While Drinking Wine, Battle of Chibi, Zhou Yu Is Frustrated Three Times, The Stable Coexistence of the Three Kingdoms, and The Union of the Three Kingdoms.

This volume tells that Liu Edou, Liu Bei's son was enthroned to be the new king of Shu. Zhuge Liang attacked Qishan six times, but he was unsuccessful and died in the military camp at last. Cao Pi, Cao Cao's son, became an emperor. Later, Sima Yi seized power. Sima Yan, Sima Yi's grandson became the emperor of Jin after he wiped out the Kingdom of Wei. He later wiped out the kingdoms of Shu and Wu and achieved the unification of China.