General Shen Yanzhi returned with the Blue Underworld Sword to rehabilitate his father and loyal ministers, and even rescued three orphans, Zhou Heng, Su Wanqing, and A Yuan. Side by side with his deputy Lin Cang, he broke into the court, wiped out the Shadow Guards, purged the rebels, and safeguarded justice amidst intrigues and war.
Many years later, the orphans each became heroes: Zhou Heng controlled floods, Su Wanqing practiced medicine, and A Yuan guarded the border, passing on the belief of "protecting the common people". The Qingming Sword kills traitors, protects the country, and also guards the reunion under the crabapple tree in the General's Mansion.
