Chapter 744 Impressive Swordsmanship

• However, cultivating Killing Aura was extremely challenging.
• It wasn't just because of the method of cultivation but also due to the extremely stringent conditions required for cultivating the Killing Aura.
• To cultivate the Killing Aura, one must absorb the resentment energy of those who had been slain on the battlefield. That, in conjunction with the martial technique, was then transformed into one's Killing Aura.