Futago Conceptia: The Demon Seeds Within Magical Twins Rin and Mayura

* The End Of The World
The earth opened and from its depths came the VIVO, giant world-enders immune to humanity's weapons.
Unable to fight, the people of Tokyo built a massive barricade hoping to keep the giants at bay.
But it only delayed the inevitable. The barricade was breached; all humans were r*ped or slaughtered.

* Magical Twins Impregnated With Apocalyptic Monsters
Horrific birth / Rapid generations of squirming spawn / Shocker eel tentacles
Endlessly seeded wombs / Plumes of alien jizzum / Coiled tendrils / etc.
The girls vomit excess sperm from one end while their destroyed vaginas purge
living spawn with wanton, shrieking spasms.
Can sisters Rin and Mayura save the world, or will they drown in the miasma of this nightmare nursery?

* Endless Birth Power Up!
The player can choose to make the twins give birth multiple times, over and over again,
in a beefed up system that will utterly wreck their wombs and genitals!