Ji Ning still maintained the illusory swordsmanship in the original realm of swordsmanship, making his true spirit collapse and pretending to be faster, so that Lord Dan and the others could not see the flaw. After all, the second spirit has never fought since the failure of the union, and the true spirit disintegrated even slower than the original spirit before it came to the Sith clan. This was an obvious flaw, so Ji Ning had to hide it....