The demon Kanan arrives in the human realm with a singular purpose: to consume the most delectable treat available, which are young human souls. Hiding her true nature by posing as a high school student, she targets Youji Kyougi, a seemingly ordinary boy. However, her plans go awry at the last moment. Rather than eating him, she enters into a romantic contract with Youji. Having lived for thousands of years without knowing love, she finds the complexities of high school romance far more frightening than any hunt. Through clumsy dates, accidental hand-holding, and unfamiliar emotions, the formerly confident demon becomes easily flustered. This supernatural romantic comedy follows a demon in love and the boy who was meant to be her dinner, delivering a story that is sweet, chaotic, and filled with new experiences.