Isyoku Jail: Anything But That Monstrosity Inside Me!!

Stranded on an inescapable island......
Pleasures given by inhuman reduce the girls to estrus vessels......

Misaki Okita and her friends Rika Kimijima and Nagisa Amamiya
were just starting to enjoy a much-needed holiday...

Then:

Mid-voyage their boat capsized, dumping all passengers into the uncharted sea......
When Misaki regained consciousness she was sprawled on a coast.
Her head spun with vertigo......

She roused Rika and Nagisa who had washed up nearby, and searched the island perimeter.
After a while a woman's shriek came from the jungle thicket.
The girls arrived to the sight of a male corpse.......

...... and something unspeakable ravishing a woman.

She wasn't from the ship, but perhaps an islander or a tourist......
The girls barely had time to think when tentacle thing rushed at them.

* Despair cloaks a natural jail-like island where perils never cease...
* Penetration, pregnancy, birth, girls possessed by bizarre charm......
* Tentacles, bugs, aphrodisiac, bindings, bellies stretched, births delivered, humiliation at every turn...
How long can such disgraces be endured?

* Heroines forcibly incubate another species' spawn......
Their descent to the deepest seedbed of abnormal reproduction is a must-see event.

CVs:
Misaki Okita (CV: Shiori Iino)
Rika Kimijima (CV: Ayumi Okuyama)
Nagisa Amamiya (CV: Himari)

Official Site:
http://softhouse-seal.com/product/086-isyoku/index.html