A half demon falls deeply in love with the master who took him in as a child, but their taboo love is doomed from the start…or is it? A half-fox demon, half-human who has lost his family is taken under the wing of a sage and raised as his pupil. As the young half-demon matures, his feelings for his master mature as well, and what was once admiration turns into forbidden love. Sage Gaochun has been taken to the nether realm by his ex-lover, the demon Shui. In order to bring him back, Feijin meets with Gaochun’s beloved younger brother, Gaoliu, to request his assistance. Unfortunately, when Gaochun was reincarnated in the mortal realm, it was into the royal family, so when Feijin approaches his brother, the second prince, he’s quickly arrested as a suspicious person! It’s then that a mysterious man who calls himself the emperor’s secretary approaches, requesting that Feijin win…Gaochun’s heart?!