Delta X!

Sintaru was gazing at his room's ceiling when he suddenly began to feel fatigued his eyelidsbecame heavy and before he knew it he was unconscious. He woke up in another world trapped inside a bunker with 3 other people. What will Sintaru do? The creatures here lust for human flesh and will do anything to obtain it. Sintaru and his friends must survive this world and the terror it beholds.