The human body has limitations. Flesh is weak. In a world where even common citizens are enhanced to overcome their drawbacks, Sigma is a pioneer, an elite soldier more machine than human, as alluring as she is deadly. But not everybody sees this cyber-frenzy with a positive eye… Sigma gets tasked with supervising the final exam of a promising cadet. Seems easy enough. The problem? The two of them are polar opposites. While Sigma is an elite cyborg, Linde is all natural. Her body is slowed down by cold and hunger, and by desires… Don't opposites attract each other? What is that glint in Linde’s eyes every time Sigma catches her staring? Your choices determine the success of Sigma and Linde’s mission. Balance instinct with rationality to ensure its success, and you might bring cute Linde home. [From Nutaku]