Gu Qiong is indeed arrogant, disregarding everyone and acting recklessly.
He came for dignity. As the former number one on the Sky List, he didn't see Ye Fan as a threat. To defend his supreme position at the top of the Sky List, eliminating Ye Fan was something he deemed necessary.
Ye Fan wasn't particularly interested in why Sky Net hailed him as number one, but it did bring him considerable trouble.
The challenge from Gu Qiong was secondary; there were also hostilities from other forces or individuals.
Just ask, while Ye Fan's current fame was widespread, not many truly respected or recognized him as the number one on the Sky List.
Being number one on the Sky List is a symbol of the highest combat power. In the Underworld, ascending to this throne means being universally recognized as the foremost powerhouse, unbeaten in solo action unless facing national armies and modern weapons.
