The endless Yin Spirit Power gathered, directly stepping across the final threshold to merge into a whole, achieving the highest accomplishment of the "Black Evil Technique" during Zheng Yi's transformation—Nine Netherworld Soul Slaughter Fiend.
This flame, characterized by ultimate Yin and Cold, yet possessing the Purest Extreme Yang Flame Heart, was directly refined by Zheng Yi into an original imprint, coagulating into a fire seed, and merged with the Flame Breath rune, one of the Seventy-two Earthly Fiend Skills runes, transforming into a Flame-Throwing Rune Seed.
In a way, this legendary flame, born from the depths of the Nine Netherworlds and smelting the deceased, has already become Zheng Yi's Lifebound Spirit Fire.
This transformation within the Seventy-two Earthly Fiend Skills talisman system into a "Flame-Breathing Talisman" can breathe fire, scorch the Divine Soul, and burn Evil Demons.
