The black-clothed person sitting by the window was none other than Gu Liangyuan.

Gu Liangyuan listened to everything around him, a faint smile appearing on his face.

While listening to the conversations around him, he immersed his mind into the Mustard Bracelet.

Inside the Mustard Bracelet, the Demon Concubine's Comb floated in mid-air, exuding a faint demonic aura.