There were only seven thousand flying swords, which was because the Science Academy had forged ten thousand for him, but three thousand of these were transformed into the Void State. After the transformation, he simply ignored the original flying swords in their True State, treating them as non-existent.
To him, it was these flying swords that had lost their spirituality. To the Science Academy, it was his superpower 'Fantasy Materialization' that required a process similar to equivalent exchange.
Either way, it actually didn't matter.
"How did you find him?"
The answer to this question was the most important.
"Of course through the locator. I had already locked onto his position when I attacked with the flying swords, so I took the opportunity to tie three locators onto the flying swords, also to test if he could resist the Void State flying swords."
