Angels and Demons have fought for millennia to see who is the best. In order to bring closure to this feud, an Angel named Sera and a Demon named Firika were sent to the human world to end the competition once and for all. The leaders of both the Angels and Demons have decided that both Sera and Firika must contend for the love of the human Yamato. Thus, both Sera and Firika compete for Tamato's love for the supremacy of their entire race. Who would have thought that the way to a guys heart is through his dick. The sex is pretty decent. Both theAngel and the Demon use a variety of costumes that aren't just their generic Angel and Demon designs, or the generic girl designs that they use when they're trying to pretend to humans. This includes a nurse outfit, a maid costume, and a girls school gym uniform. They even have sex in different places, like a train, the school gym's storage room, and our main protagonists bedroom. You're bound to find something to beat your meat to in this 2 episode hentai.

Surprisingly, this has a few mildly amusing comedic moments. The first episode features an unfortunate teleportation accident where the demon tries to teleport away from the angel with our male protagonist, while the angel tries to keep him in his room. As a result, every part of the protagonist stays, except for his dick, which is just floating there in the middle of a park. The demon tries to blow him so she can win him to her side, all while the angel watches. There's even a scene at the end of the hentai were the cock detaches from his body yet again, and one of the girls cries "Felicia-san, return his cock already! I want his cum too".

My only real complaint is the Demon character hogs the spotlight. While I wouldn't be opposed to that, what's the point of having the Angel character if they're not going to get as much attention. Just make the whole thing Demons if that's what you want to make. Maybe it's a result of being based on a visual novel, but that's never prevented a hentai from deviating from the source material before.

Would I recommend both "Nuki Doki! Tenshi to Akuma no Sakusei Battle"? Yes. Nuki Doki makes for pretty decent spank material if you need something to watch when you need to rub one out.