Ji Dong had no idea that only the most pure Elemental Body could show an elemental transformation through breathing. If it were a single-attribute Elemental Body, then the transformation should be manifested by changes in the light-dark spectrum of its native attribute color. Ji Dong's dual attributes gave rise to this marvelous spectacle of the colors of his two ultimate fires transforming reciprocally. This elemental change was the main benefit of his earlier ultimate dual fire forging.
The black and gold vortex within his chest did not disappear, but revolved around that strange crown, segueing into an undeniably color-altering crown: Ji Dong's Original Yin-Yang Crown. It was not merely a Yin Crown or a Yang Crown, but a Yin-Yang Crown.