A massive clap of thunder exploded in the sky, vibrating through the air and shaking the eardrums.
Dark clouds gathered densely, pressing down and covering the small area entirely.
Beyond this twenty-meter radius, the world remained eerily quiet, unchanged.
Takizawa Chiyo's gaze was filled with terror. Staring at Si Fuqing, who was now surrounded by lightning, he stuttered in shock, "The... the art of summoning thunder! You, you actually..."
Masters of Yin-Yang were ranked from one to seven.
Ordinary masters, ranked one to three, specialized in the Five Elements, fengshui, and star chart calculations.
Those ranked four and above could summon wandering spirits, skillfully use Yin-Yang techniques and the Five Elements formations, and even foresee the past and future through spiritual entities.
Above the seventh rank, there were even higher levels.
