Anna was refining the Nerve Center in the main hall when she suddenly detected something unusual from the back hall and hurriedly interrupted the refining process to rush over.
Upon arriving at the doorway, the anomaly had vanished, leaving only Yan Yu standing amidst the mess, holding the Liangyi Micro Dust Sword in his hand, his face donned with a mysterious and inscrutable smile.
"What happened?" Anna asked anxiously.
Yan Yu didn't answer, but instead pinched a Sword technique, and the Liangyi Sword turned to point at her.
Anna, still clueless about what was going on, saw a strand of her blonde hair suddenly fall to the side. The Liangyi Sword had already disappeared without a trace, then reappeared behind her.
"Impressive, huh?" Yan Yu said with a raised eyebrow and a smile.