Han Dong was a special case,
as the weakest member among the support troops, he adhered closely to Director Charles throughout, staying near the black curtain.
Whether it was Charles personally welcoming him or the subsequent special treatment given, it clearly indicated his desire to "recruit him."
During this time, Han Dong also secretly looked at Mr. M.
The latter seemed completely indifferent, even signaling Han Dong to stay by Charles' side with his eyes, suggesting it was the safest option.
Soon they were close to the "black curtain" formed by the World Rubik's Cube.
This term "black curtain" was used to describe the World Lock because what the naked eye observed was a black veil completely covering the world,
with its surface continuously rippling eerily,
like waves in the ocean,
upon approaching, these ripples could transform into a black mouth and swallow individuals whole,
of course, the black curtain performs a 'selective devouring.'
