Interstellar observer Lin Jianwei disguised himself as a failed scholar and sneaked into the Caogang Gang in the south of the Yangtze River. Originally, he only wanted to record the order and human network of Jianghu with a cold eye. However, due to the blind girl Su Xiaowan and many old cases, he was involved in the undercurrent of salt tax, private soldiers and court. The deeper he looked, the harder it became for him to remain a mere bystander.
