Jiu Ying's words were enough.

He could not represent the demons, but he could represent himself.

Wu Yu naturally knew that he was a worthy friend.

Nangong Wei and Beishan Mo from Shushan were among those around his age that had reached Wu Yu's level and known Wu Yu. Now only Nangong Wei was left. Of the Four Geniuses of Yan Huang Imperial City, Qin Fuyao had become Yu Fuyao of the Heavenly Seas and was the daughter of the Eighth Hell Emperor, while the remaining three were not close to Wu Yu. 

As for the geniuses of the Shangyuan Dao Sect and Tianyi Race, he had not met any of them yet.

Hence, Jiu Ying was Wu Yu's only friend of around the same age.

The rest were like elder brothers, like Shen Xingyao, or like older sisters like, Shen Xingyu. 

People like his fellow disciples at the Heavenly Sword Sect and the brothers and sisters at Heaven's Equal Camp were all people who were close to him.

Of course, there was another, and that was Luo Pin. After their time together in the Heaven Devouring Evil Residence, Wu Yu and her were even closer than he was with Jiu Ying.

It was a pity that he was too far away from Luo Pin. He did not know when he would reach Luo Pin's cultivation...