On a day in April 2006, four young men – Cao Fei, Ah Long,TOKILL and Fang Zheng were walking on the way to Yunnan province.Initially, Cao Fei was invited to make a feature film about “Yunnan” subject, nevertheless, the creation of the film reached an impasse due to various reasons in the process, all that remains is the script of Nù (Anger) which is the core of the publication. The photographs featured in the book are taken from this journey, which along the Nujinag River nevertheless involves the very conception of life.