Chapter 487: Trouble That Knocks On The Door

A half-naked young man within the spacious training room had his eyes tightly shut. Dark-red energy circled and flew by, finally violently crashing against his naked body. It immediately disappeared in a strange manner.

The green-colored Dou Qi that was within the spacious Qi Paths in his body was like a car whizzing past on an expressway. Under the focus of his mind, it carried a low humming sound that repeatedly reverberated and spread within his body.

After consuming the Swift Wind Spirit Pill, the circulating speed of the Dou Qi in Xiao Yan’s body was basically increased by nearly three to four times at this moment. Waves of green-colored powerful Dou Qi shot out from the Dou Crystal. They ran quickly through the Qi Paths with strange muffled sounds.

Due to the fast rate of circulation, the cycle within Xiao Yan’s body eventually achieved a stage where the start and the end were connected. Dou Qi had just left the Dou Crystal from one side when Dou Qi that had been refined by the Heart Flame poured turbulently back into it on the other side.

Moreover, other than the Dou Qi that the Dou Crystal emitted,...