Oroka na Tenshi wa Akuma to Odoru

With the demon world close to losing its war against Heaven, Masatora Akutsu is sent to Earth to find someone charismatic enough to restore the morale of Hell’s forces. Disguised as a high school student, he quickly spots what seems like the perfect recruit in Lily Amane, a beautiful classmate who appears far too impressive to ignore.

His plan collapses when Lily reveals herself to be an angel, exactly the kind of enemy Akutsu was sent to fight. Akutsu decides to corrupt her before she can endanger him, while Lily becomes equally determined to “reform” the demon for reasons of her own. Their battle of schemes, humiliations, and supernatural one-upmanship soon gives way to a far more dangerous contest: keeping themselves from falling for the person they are supposed to defeat.