"Don't be like that. After I apologize, I wanted to ask you to help with the Ancient Script. Earlier, I thought of apologizing first as a prelude, and then telling you about it, so you'd accept it more easily."
Tang Rao was scheming audibly in his heart, but he didn't hide it from the Purple Crystal Beast. Not only that, he told the Purple Crystal Beast everything he was thinking, and the beast could guess Tang Rao's thoughts. It didn't refuse but believed Tang Rao directly, asking him to bring out the item.
"Where's the Ancient Script then?"
The Purple Crystal Beast was waiting for the item. Tang Rao saved a recording of it before handing it to the Purple Crystal Beast.
It's not that he didn't trust the Purple Crystal Beast, but 'better safe than sorry,' save early, just as a fallback.
