Preliminary summary (because it's just a silly joke I wanted to write on a whim, so I won't write the plot XD I'm so lazy):
In ancient times, it was normal to have a tail, wings and so on.
The Great Tengu is a prince who went through many hardships in order to win the throne and finally succeeded in ascending to the throne.
The demon fox was an adviser to the Great Tengu camp during the war, and his father was a third-rank civil servant. During the battle, his family was in trouble, and everything changed. At the critical moment when the power of the Great Tengu was weak, he was caught by his sworn enemy and asked about the whereabouts of the Great Tengu. The demon fox would rather die than tell the story. Everyone knows that the eyes of the demon fox clan can deceive people's minds and are extremely seductive, so their sworn enemies used poison to blind the demon fox.
From then on, the demon fox was exiled to the mountains and fields of the frontier, and after the Great Tengu became king, he tried his best to find the demon fox. His love and sex moved heaven, and the Great Tengu finally got the news about the demon fox.
Concept: sweet cookies