C301 Kill Mu Wen

Zhang Haorann borrowed the Yin Yang Eyes's Boundless Space, which was originally the place with the most death Qi. After the Heaven and Earth Vital Energy entered it, it merged perfectly with the death Qi, forming a unique Yin and Yang energy.

The Yin and Yang energy covered the Netherworld Sword, and Zhang Haorann named it the Profound Yin Swordsmanship