Bi Zhan's tone was indeed not small, filled with arrogance and self-confidence.
To be truthful, firstly his background wasn't minor, being a prince. Moreover, the power of the Bi Zhen Country was not small either, even stronger than the Liang Kingdom and Xia Country.
Secondly, Bi Zhan was currently an outer member of the Sacred Dragon Party, and also a standout figure of the Outer Sect. Additionally, his brother was an important member of the Sacred Dragon Party, an elite disciple, considered a top-notch expert within the Jiuzhou Immortal Sect, at the Golden Core Realm.
With these layers of assurance, Bi Zhan was completely self-confident. In the Jiuzhou Immortal Sect, he truly feared no one. As long as he didn't offend an elite disciple or someone from the Pan Family, he was fearless.