Buji Island.
A secluded bay of the Silent River.
An unmanned Ze Meng boat quietly moored on the shore, gently swaying with the water waves, without being tethered by ropes, yet unexpectedly not swept away by the current.
Beneath the boat, several tens of meters below the water's surface.
Inside a huge air bubble, a few 'Ravens' sit cross-legged, looking upwards. The membrane wall of the bubble reflects an open, quiet battlefield deep in the Silent Forest, with a bald hill in its center. At this moment, most of the soil layer outside the hill has been stripped away, revealing a structure inside resembling a delicate Pyramid.
The leading Raven slowly reminds his companions: "…This time, the experiment is large-scale. The Professor ordered that the related data recording and collection must be precise, so I hope everyone present will not be distracted by certain unexpected situations, and stay focused on their task."
