C2518 One Hook and One Stroke Was the Rune

One hook and one line is the rune.

In the eyes of all Rune Grandmaster, all the symbols and lines that Hanyu Xiaotian had drawn, no matter how complicated those symbols were, were all accurate to the point of being 'not even a little'!

There was no error at all. It was even more seamless and precise than the symbols and lines that they had drawn using high precision instruments.

Furthermore