Mistress Kanan is Devilishly Easy

Kanan, a millennium-old demon, arrives in the human world with the intention of feasting on young human souls. Disguising herself as a high school student, she sets her sights on Youji Kyougi, her first target. However, Kanan forms a romantic contract with Youji instead of devouring him, leading to a series of awkward and chaotic experiences as she navigates high school romance for the first time. This encounter proves to be more overwhelming than any hunt she's ever been on.