There Was a Wolf at the Beginning, and the Little Maid Was Confused.

Legend has it that since the Golden Wolf Emperor ascended the throne at the age of eighteen, all women who sleep with him on a full moon night will die... Liu Ya, who traveled from modern times and became a maid in a brothel, was sent to the palace to be used by the emperor on a full moon night. But what did she see? The one with the bloody mouth on the night of the full moon is not the emperor, but a... Pet wolf?