Hyouryuu Harem Mujintou ni Nagareta Joshi-tachi o Rape! Rape! Rape!

PE coach Takeda-sensei of Private All Girls Academy was this year's chaperone for the school trip.
An explosion took their airplane out of the sky, stranding everyone on a deserted island.
They couldn't have known the indigenous fruits contained a psychosexual resin.
On the beaches of that remote paradise, survival instinct gave over to primal acts of orgy and rape.
But what caused the explosion on the plane?

[From DLsite English]