A few things were working to the lad's disadvantage. One, that Tojiko was from the Asuka period. The alliance post-dated her. Secondly, her religion was very much anti-youkai regardless of that position. And thirdly, a tanuki happened to be one of her faction's enemy's allies.

"Such a treaty is no doubt forged in trickery, as is the way of your kind, rodent." So yeah. A lot of factors working against him.