Rakuen Shinshoku: Island of the Dead

Rakuen Shinshoku: Island of the Dead. On an uninhabited island, a group of humans build a luxury resort hotel. On the island there are alien plant species that hinder their development but they all managed to overcome it thanks to the research of two women. When on the day of the opening ceremony of the luxury resort hotel, suddenly a group of alien plant species went on a rampage and attacked everyone who was there. The men are turned into zombies, and the women are raped and used as hosts for their fertilization...