It was Gu Xiaolan who had just launched an underground attack on the Thunder Controller. She accurately pinpointed the Thunder Controller's weakness, first feigning weakness with ordinary large caliber bullets to numb the Thunder Controller's vigilance. Then, she used a hidden mysterious bullet to grievously wound the Thunder Controller, showcasing Gu Xiaolan's enigmatic computational ability and marksmanship.
When Yan Fei discovered that it was Gu Xiaolan who had severely injured the Thunder Controller, he was utterly shocked. The Thunder Controller seemed invincible, yet he was still gravely injured by Gu Xiaolan and eventually forced to flee in panic. Gu Xiaolan seemed to have a magical ability; no matter who it was, even a God-Level Expert couldn't escape the attack of her bullets. Gu Xiaolan's body was only slightly stronger than the average person's; how did she manage to accomplish this?