C549 The Secret of the Diamond Meridian

"You are ruthless!" After Qing left, Gao Yu cursed angrily. He took out the scripture of the [Vajra Scripture] and read it silently. Then, he put it aside and looked at the [Blood Devil Scripture] once more. There was no other way. Gao Yu, who had just tasted the sweetness, naturally couldn't give up on this mysterious manual so quickly