Zheng Ke, an ordinary but experienced fisherman, guards the familiar lake day after day. Until one day, the appearance of a mysterious organization broke his peaceful life - there was an unknown creature lurking in the lake, and he was the only one chosen to "fish" for it. A special fishing rod, an irresistible mission, an adventure beyond imagination. When the fishing line sinks to the bottom of the unfathomable lake, what awaits him is not only unprecedented creatures, but also an amazing truth about life, nature and the unknown world.
