To the junior college student, the upcoming summer internship is quite possibly the worst choice she'd made the whole year. But hang on- she hadn't met her coworkers yet! 

Late Tang dynasty. Chinese poet Luhan and Korean mage Sehun join forces to investigate a demonic cat who has possessed a general’s wife. The investigation takes unexpected twists, resulting in the mage and the poet unraveling the mystery behind the death decades earlier of the legendary concubine Yang.