In fact, Huayu Temple's Penalty Priest is someone else, but she directly chose Wen Gaoren, not because she doesn't trust that Penalty Priest. After repeated life-and-death crises, she was absolutely assured of the loyalty of her subordinate priests, but worried that he might be cautious about Zhao Xinggu's background, afraid of causing trouble for Huayu Temple and herself, and wouldn't dare speak out righteously.
Wen Gaoren is different. Because he can't agree with the character of the Ou Family, he spent his life refusing to serve them, even when forced into isolation without yielding. His temperament is upright and unyielding, even garnering Mu Hanyan's secret admiration at times.
