背德的四重奏

Humanity has gone nearly extinct. Only four humans remain—two men and two women, desperate to survive on a floating island. As they spend more time together, arguments on how to move forward threaten to drive the four of them apart.

You wake up on your favorite beach, your estranged childhood friend standing over you. The last thing you remember is collapsing from the illness that coursed through the world. How did you and your three companions survive? Is there anyone else left? As you struggle to survive, you find many questions left unanswered... It's up to you to uncover the truth.