Da Zi had become accustomed to speaking its mind freely after being separated from Gao Peng for so long, like a child throwing a tantrum when no one was looking.
It's not like Gao Peng's around to hear me say these things about him...
Both masters and familiars could communicate with each other through a Blood Contract. The only downside to it was its limited communication range. Both parties needed to be within a certain distance in order to communicate through their Blood Contract.
Gao Peng narrowed his eyes. He was now hearing Da Zi's voice in his head. It had to be close. After much experimentation, he had discovered that different types of familiars had different communication ranges.
At first, he had assumed that this was largely decided by a familiar's power level. However, he had later realized that this wasn't necessarily the case.