Even though he said he wasn't sure if Xu Yin was really someone from Prince Yi Mansion, just based on what he said, the steward of the Tanzhou ancestral home turned out to be a guest of Prince Yi Mansion, and Xu Yin, a mere civil servant, actually kept so many formidable death soldiers, it already explained the problem!
Apart from Pei Zhan, Liang Chen, and others who were already well aware of this, the remaining Minister of the Ministry of Justice and the Imperial Censor had already forgotten how to react!
Xu Yin has been an official in the Great Zhou Court for more than six years. When he sat for the imperial examinations, there was rigorous and thorough investigation into his background and origins. Moreover, he spoke fluent Central Plains dialect, and even many Tanzhou natives in the court had close interactions with him, all proving that his Tanzhou dialect was very authentic!
How could he be a Dayue person?
And even someone from the Dayue Royal Family!