"When did you first encounter the Es Civilization?"
"After biotechnology first broke through to the C9 level in the microscopic field, the Es Civilization formally made contact..." The Daike general dug through every bit of information in his brain to answer Shen Shi's question.
After they became a C-level civilization and began to dominate this star domain, they already knew of the existence of the more powerful B-level civilizations and understood that they belonged to the Es Civilization. However, over a long period of time, the Daike Civilization did not find even the slightest trace of the Es Civilization—neither people nor locations; even sending people to look yielded no results. Only when delivering tributes could they see immensely powerful spaceships, but beyond that, there was not much contact.
So for a long time, the Es Civilization, the B-level civilization, was just a code name in the impression of the Daike Civilization.
