Chapter 872 - Chapter 970: Continuous Body Training

The Thunder Ball formed by the thunder attribute energy within Yiyun's body was like a Long Whale Sucking Water, emitting a massive suction force that continuously plundered the energy from the gray aura through the gray air current connected to Yiyun's skin, or rather, relentlessly devoured the gray aura. The thunder attribute energy in Yiyun's meridians kept surging and roiling, dragging wisps of gray air current to run through the meridians, finally sending it back to the Dantian, allowing the Thunder Ball to devour the gray air current. Each plunder shrunk the gray aura a little, and each devour made the Thunder Ball's thunder grow even louder.