Shokuchuu Kansen

Crawling tentacles encircle the girl, slipping deeply! Kotone and her brother were taken to a human-free island. But human-free doesn't mean desolate. Something feels very wrong... The island is crawling with unnatural horrors!! Kotone is violated by mysterious creatures, and her brother... Her brother has been hideously transformed! Some way, some how she needs to protect what remains of him, so they can both escape this genetically engineered hell!