Based on the erotic game by Grand Cru Bourgeois.

The fight between angels and devils to squeeze sperm has begun again! Yes, this is the next season from Nuki Doki! Tenshi to Akuma no Sakusei Battle. In this case the war does not occur between the two angels and the devil, but there is a third party that appears the beautiful and sexy Priest Shrine.

(Source: Nekopoi and Has Been Translated)