The End of the World ~The Apocalypse of Sex, The Final Battle~ FTHTD-225

The goddess of sex, Rika, was deeply worried about the declining human population caused by impotence and an increase in virgins. One day, angels, under Rika's command, descended to Earth, disguised as humans, and devoted themselves to eradicating virginity and improving impotence. Thanks to the angels' efforts, the problem gradually improved. However, due to a certain incident, a massive incestuous relationship erupted among the gods in the celestial realm.