Warrior Kou Ke trains in the Breathing Blade Technique alongside his senior brother Zhan Hu. Together, they set out on the path of demon slaying to defeat the "Big Juprajna" threatening the human world. To avenge Zhan Hu, Warrior Kou Ke devotes himself to mastering the "Sun Breathing" technique. In the end, he uses his sword, "Big Jup Cut," to slay the giant demon "Big Juprajna," which had been wreaking havoc in the human world.