C271 Diversion waterway

Gu Shiyi's left hand held the dagger back then, while her right hand hid inside her sleeves. Just as the group of black-clothed men were about to attack them, she waved her right hand, and in an instant, half of the black-clothed men fell to the ground, their faces filled with pain as they rolled on the ground, screaming miserably.

As for the other half