Hypn*sis Reverse R*pe Isle

The wind sent our passenger boat wayward at sea.
Me and my girlfriend were stranded on an uncharted island.

We wondered where this could be, and what happened to the other passengers...
Completely lost, we wandered into the jungle.

At last we found a small village. But... something was strange.
An incredibly beautiful woman welcomed us.
"Can we stay here for the night?" I began to ask.
"Of course," said the beauty. "But only you. She must leave."
I was shocked. But the beauty laughed.
"I'm joking."
A peculiar, enticing smile lingered on her gorgeous face.
I should have known then we were stepping into hell.

Characters:
The protagonist (you)
Mamiko, the girlfriend
Rie, the hypnotist
Kasumi, the little sister of Rie
Fumie, the island girl
Mika, the blonde daughter
Yukiko, the maid
Miyu & Mayu, the twins