Gu Chang’an often goes fishing, but what he seeks isn’t fish—it’s the lies hidden in their bellies. ———— Water is the essence of all things. Whether standing by the river or living near it, whenever someone tells a lie, the falsehood is absorbed by the water and eventually swallowed by the fish. The Gu family possesses a unique innate ability: they can catch these lie-filled fish, listen to the falsehoods one by one, and extract the lies they seek.