Given the short time span and the fact that most civilizations had only made contact with the Seven Star Civilization, with few bordering each other... therefore, most powers had not yet thought of the Seven Star Civilization.
But there were exceptions.
...
Fire Hell Civilization.
"What?"
"There's another Star Realm where a similar situation has occurred? Most of the Flying Heaven warriors have fallen."
"The same situation, where they died silently and suddenly? Possible soul annihilation?" These semi-divines at the highest echelons of Fire Hell Civilization were all shaken.
Their civilization bordered two Star Realms with the Seven Star Civilization.
Quickly...
The Fire Hell Civilization found a commonality.
"The attacks on both realms occurred within a very short interval."
"Both of these Star Realms are Second Level Star Realms!"
