[ Animation Manga ] Nuki Doki Tenshi to Akuma Battle 1

Angels and devils have been engaged in a long-running battle to determine who will rule supreme. In order to put this conflict to a close, an angel called Sera and a demon named Firika were sent to the human realm to compete for the affections of a human named Yamato, who was the object of their affections. The two women vie for Yamato's affections as well as the dominance of their whole species, using whatever methods are necessary in order to achieve their goals.