Gu Heng was busy in the backyard.

He had taken down the signboard from the entrance of the Medicine Hall and was washing it.

It didn't need to be cleaned so quickly, but a few days ago, some powerful cultivators had broken through, causing quite a disturbance, and a lot of dust had settled on it.

Bai Fei'er and Qin Yiyao had both gone out, leaving Gu Heng as the only man in the Medicine Hall, along with a cat. It was the perfect time to give the place a thorough cleaning.