This Immortal Gu was the size of an adult's finger, it was silver and blue in color, shining with a bright light. It was like a centipede, but instead of having multiple pairs of legs, it had soft and thin hair instead.
"This seems to be… sword eyebrows Immortal Gu?"
Fang Yuan thought and had a flash of inspiration.
This was among the information that he had obtained from Feng Jin Huang.
Sword Immortal Bo Qing had a rank seven Immortal Gu, Sword Eyebrows, it was not an attack type Gu, instead, it assisted with sword path cultivation.
When Gu Immortals use it, they can modify their eyebrows. Every hair on their eyebrows could be embedded with sword path dao marks.
Dao marks had immense amplification effects towards the power of Immortal Gu.
The number of hairs in a person's eyebrows, if one truly counted all of them, the quantity was not few.