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Angels are now in charge of human reproduction.

If you have sex once, you will get pregnant 100% of the time... Angels match men and women who have such physical compatibility. Adultery? Incest? Anything goes when it comes to impregnation...
-- Tanabe, a novice angel, is struggling as the person in charge of human reproduction! His first targets are a man and a woman who are each other's "first love," but are "married."
They wanted to fuck each other but couldn't... She seduces the man who laments his past and sets up a reunion!
The man and woman are brought into close proximity with their bodies aching with sexual desire at its peak.
When they finally start having sex, it feels too good... He pushed his ex-girlfriend, who was now a married woman, down on the bed, violently pounding his hips, and cumming deep inside her many times...